basic

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v0.2.0 Latest Latest Go to latest Published: Aug 6, 2026 License: Apache-2.0 Imports: 15 Imported by: 0

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Valid go.mod file
Redistributable license
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Stable version
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git.b612.me/b612/astro

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Documentation ¶

Index ¶

Constants
Variables
func AJupiterX(jd float64) float64
func AJupiterXYZ(jd float64) (float64, float64, float64)
func AJupiterY(jd float64) float64
func AJupiterZ(jd float64) float64
func AMarsX(jd float64) float64
func AMarsXYZ(jd float64) (float64, float64, float64)
func AMarsY(jd float64) float64
func AMarsZ(jd float64) float64
func AMercuryX(jd float64) float64
func AMercuryXYZ(jd float64) (float64, float64, float64)
func AMercuryY(jd float64) float64
func AMercuryZ(jd float64) float64
func ANeptuneX(jd float64) float64
func ANeptuneXYZ(jd float64) (float64, float64, float64)
func ANeptuneY(jd float64) float64
func ANeptuneZ(jd float64) float64
func ASaturnX(jd float64) float64
func ASaturnXYZ(jd float64) (float64, float64, float64)
func ASaturnY(jd float64) float64
func ASaturnZ(jd float64) float64
func AUranusX(jd float64) float64
func AUranusXYZ(jd float64) (float64, float64, float64)
func AUranusY(jd float64) float64
func AUranusZ(jd float64) float64
func AVenusX(jd float64) float64
func AVenusXYZ(jd float64) (float64, float64, float64)
func AVenusY(jd float64) float64
func AVenusZ(jd float64) float64
func ApparentAltitude(trueAltitude, pressureHPa, temperatureC float64) float64
func ApparentSiderealTime(jd float64) float64
func ApparentSiderealTime1982(jd float64) float64
func ApparentSiderealTime2006(jd float64) float64
func BoToDec(jde, lo, bo float64) float64
func CalcMoonS(year float64, phaseType int) float64
func CalcMoonSH(year float64, phaseType int) float64
func CalcMoonSHByJDE(jde float64, phaseType int) float64
func CalcMoonX(year float64, quarterType int) float64
func CalcMoonXH(year float64, quarterType int) float64
func CalcMoonXHByJDE(jde float64, quarterType int) float64
func ClosestMoonPlanetConjunction(jde float64, planet MoonPlanetConjunctionPlanet) float64
func ConstellationCode(ra, dec, jde float64) string
func ConstellationNameByCodeEN(code string) string
func ConstellationNameByCodeZH(code string) string
func ConstellationNameEN(ra, dec, jde float64) string
func ConstellationNameZH(ra, dec, jde float64) string
func CulminationTime(jd, lon, tz float64) float64
func CulminationTimeN(jd, lon, tz float64, n int) float64
func Date2JDE(date time.Time) float64
func DecToBo(jde, ra, dec float64) float64
func DefaultDeltaTv2(date float64, isJd bool) float64
func DeltaT(date float64, isJDE bool) float64
func DeltaTSplineY(y float64) float64
func DeltaTv2(jd float64) float64
func Distance(jd float64) float64
func EarthAway(jd float64) float64
func EarthAwayN(jd float64, n int) float64
func EarthJupiterAway(jd float64) float64
func EarthJupiterAwayN(jd float64, n int) float64
func EarthMarsAway(jd float64) float64
func EarthMarsAwayN(jd float64, n int) float64
func EarthMercuryAway(jd float64) float64
func EarthMercuryAwayN(jd float64, n int) float64
func EarthNeptuneAway(jd float64) float64
func EarthNeptuneAwayN(jd float64, n int) float64
func EarthPI(jd float64) float64
func EarthRotationAngle(jd_ut1 float64) float64
func EarthSaturnAway(jd float64) float64
func EarthSaturnAwayN(jd float64, n int) float64
func EarthUranusAway(jd float64) float64
func EarthUranusAwayN(jd float64, n int) float64
func EarthVenusAway(jd float64) float64
func EarthVenusAwayN(jd float64, n int) float64
func Earthe(jd float64) float64
func EclipticObliquity(jde float64, nutation bool) float64
func EveningTwilight(jd, lon, lat, tz, targetAltitude float64) (float64, error)
func EveningTwilightN(jd, lon, lat, tz, targetAltitude float64, n int) (float64, error)
func GXCBo(lo, bo, jd float64) float64
func GXCLo(lo, bo, jd float64) float64
func GeocentricRadius(lat float64) float64
func GetDeltaTFn() func(float64, bool) float64
func GetGanZhi(year int) string
func GetJQTime(year, angle int) float64
func GetJieqiLoops(year, loop int) []float64
func GetLunar(year, month, day int, tz float64) (lyear, lmonth, lday int, leap bool, result string)
func GetMoonCir() [][][]float64
func GetMoonLoops(year float64, loop int) []float64
func GetMoonRiseTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)
func GetMoonSetTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)
func GetMoonTZTime(jd, lon, lat, tz float64) float64
func GetNowJDE() (nowJDE float64)
func GetShiErCi(jd float64) string
func GetSolar(year, month, day int, leap bool, tz float64) float64
func GetSunRiseTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)
func GetSunRiseTimeN(julianDay, longitude, latitude, timeZone, zenithShift, height float64, n int) (float64, error)
func GetSunSetTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)
func GetSunSetTimeN(julianDay, longitude, latitude, timeZone, zenithShift, height float64, n int) (float64, error)
func GetWuHouTime(Year, Angle int) float64
func HMoonApparentDec(jd, lon, lat, tz float64) float64
func HMoonApparentDecN(jd, lon, lat, tz float64, n int) float64
func HMoonApparentLo(jd float64) float64
func HMoonApparentLoN(jd float64, n int) float64
func HMoonApparentRa(jd, lon, lat, tz float64) float64
func HMoonApparentRaDec(jd, lon, lat, tz float64) (float64, float64)
func HMoonApparentRaDecN(jd, lon, lat, tz float64, n int) (float64, float64)
func HMoonApparentRaN(jd, lon, lat, tz float64, n int) float64
func HMoonAway(jd float64) float64
func HMoonAwayN(jd float64, n int) float64
func HMoonAzimuth(jd, lon, lat, tz float64) float64
func HMoonAzimuthN(jd, lon, lat, tz float64, n int) float64
func HMoonGeocentricApparentDec(jd float64) float64
func HMoonGeocentricApparentDecN(jd float64, n int) float64
func HMoonGeocentricApparentRa(jd float64) float64
func HMoonGeocentricApparentRaDec(jd float64) (float64, float64)
func HMoonGeocentricApparentRaDecN(jd float64, n int) (float64, float64)
func HMoonGeocentricApparentRaN(jd float64, n int) float64
func HMoonGeocentricTrueDec(jd float64) float64
func HMoonGeocentricTrueDecN(jd float64, n int) float64
func HMoonGeocentricTrueRa(jd float64) float64
func HMoonGeocentricTrueRaDec(jd float64) (float64, float64)
func HMoonGeocentricTrueRaDecN(jd float64, n int) (float64, float64)
func HMoonGeocentricTrueRaN(jd float64, n int) float64
func HMoonHeight(jd, lon, lat, tz float64) float64
func HMoonHeightN(jd, lon, lat, tz float64, n int) float64
func HMoonTrueBo(jd float64) float64
func HMoonTrueBoN(jd float64, n int) float64
func HMoonTrueDec(jd float64) float64
func HMoonTrueDecN(jd float64, n int) float64
func HMoonTrueLo(jd float64) float64
func HMoonTrueLoN(jd float64, n int) float64
func HMoonTrueRa(jd float64) float64
func HMoonTrueRaDec(jd float64) (float64, float64)
func HMoonTrueRaDecN(jd float64, n int) (float64, float64)
func HMoonTrueRaN(jd float64, n int) float64
func HSunApparentDec(jd float64) float64
func HSunApparentDecN(jd float64, n int) float64
func HSunApparentLo(jd float64) float64
func HSunApparentLoN(jd float64, n int) float64
func HSunApparentRa(jd float64) float64
func HSunApparentRaDec(jd float64) (float64, float64)
func HSunApparentRaDecN(jd float64, n int) (float64, float64)
func HSunApparentRaN(jd float64, n int) float64
func HSunTrueBo(jd float64) float64
func HSunTrueBoN(jd float64, n int) float64
func HSunTrueDec(jd float64) float64
func HSunTrueDecN(jd float64, n int) float64
func HSunTrueLo(jd float64) float64
func HSunTrueLoN(jd float64, n int) float64
func HSunTrueRa(jd float64) float64
func HSunTrueRaN(jd float64, n int) float64
func HeightDegree(height float64) float64
func HeightDegreeByLat(height, lat float64) float64
func HeightDistance(height float64) float64
func HeightDistanceByLat(height, lat float64) float64
func JDE2Date(jd float64) time.Time
func JDE2DateByZone(jd float64, tz *time.Location, byZone bool) time.Time
func JDECalc(year, month int, day float64) float64
func JQLospec(jd float64, target float64) float64
func JupiterApparentBo(jd float64) float64
func JupiterApparentBoN(jd float64, n int) float64
func JupiterApparentDec(jd float64) float64
func JupiterApparentDecN(jd float64, n int) float64
func JupiterApparentLo(jd float64) float64
func JupiterApparentLoBo(jd float64) (float64, float64)
func JupiterApparentLoBoN(jd float64, n int) (float64, float64)
func JupiterApparentLoN(jd float64, n int) float64
func JupiterApparentRa(jd float64) float64
func JupiterApparentRaDec(jd float64) (float64, float64)
func JupiterApparentRaDecN(jd float64, n int) (float64, float64)
func JupiterApparentRaN(jd float64, n int) float64
func JupiterAscendingNode(jd float64) float64
func JupiterAscendingNodeN(jd float64, n int) float64
func JupiterAzimuth(jde, lon, lat, timezone float64) float64
func JupiterAzimuthN(jde, lon, lat, timezone float64, n int) float64
func JupiterB(jd float64) float64
func JupiterBrightLimbPositionAngle(jd float64) float64
func JupiterBrightLimbPositionAngleN(jd float64, n int) float64
func JupiterCulminationTime(jde, lon, timezone float64) float64
func JupiterCulminationTimeN(jde, lon, timezone float64, n int) float64
func JupiterDSDE(jd float64) (ds, de float64)
func JupiterDSDEN(jd float64, n int) (ds, de float64)
func JupiterDescendingNode(jd float64) float64
func JupiterDescendingNodeN(jd float64, n int) float64
func JupiterDiameter(jd float64) float64
func JupiterDiameterN(jd float64, n int) float64
func JupiterHeight(jde, lon, lat, timezone float64) float64
func JupiterHeightN(jde, lon, lat, timezone float64, n int) float64
func JupiterHourAngle(jd, lon, timezone float64) float64
func JupiterHourAngleN(jd, lon, timezone float64, n int) float64
func JupiterIlluminatedFraction(jd float64) float64
func JupiterIlluminatedFractionN(jd float64, n int) float64
func JupiterL(jd float64) float64
func JupiterMag(jd float64) float64
func JupiterMagN(jd float64, n int) float64
func JupiterPhaseAngle(jd float64) float64
func JupiterPhaseAngleN(jd float64, n int) float64
func JupiterR(jd float64) float64
func JupiterRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func JupiterRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func JupiterSemidiameter(jd float64) float64
func JupiterSemidiameterN(jd float64, n int) float64
func JupiterSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func JupiterSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func LastJupiterConjunction(jde float64) float64
func LastJupiterEasternQuadrature(jde float64) float64
func LastJupiterOpposition(jde float64) float64
func LastJupiterProgradeToRetrograde(jde float64) float64
func LastJupiterRetrogradeToPrograde(jde float64) float64
func LastJupiterWesternQuadrature(jde float64) float64
func LastMarsConjunction(jde float64) float64
func LastMarsEasternQuadrature(jde float64) float64
func LastMarsOpposition(jde float64) float64
func LastMarsProgradeToRetrograde(jde float64) float64
func LastMarsRetrogradeToPrograde(jde float64) float64
func LastMarsWesternQuadrature(jde float64) float64
func LastMercuryConjunction(jde float64) float64
func LastMercuryConjunctionStrict(jde float64) float64
func LastMercuryGreatestElongation(jde float64) float64
func LastMercuryGreatestElongationEast(jde float64) float64
func LastMercuryGreatestElongationEastInclusive(jde float64) float64
func LastMercuryGreatestElongationInclusive(jde float64) float64
func LastMercuryGreatestElongationWest(jde float64) float64
func LastMercuryGreatestElongationWestInclusive(jde float64) float64
func LastMercuryInferiorConjunction(jde float64) float64
func LastMercuryInferiorConjunctionInclusive(jde float64) float64
func LastMercuryProgradeToRetrograde(jde float64) float64
func LastMercuryProgradeToRetrogradeInclusive(jde float64) float64
func LastMercuryRetrograde(jde float64) float64
func LastMercuryRetrogradeInclusive(jde float64) float64
func LastMercuryRetrogradeStrict(jde float64) float64
func LastMercuryRetrogradeToPrograde(jde float64) float64
func LastMercuryRetrogradeToProgradeInclusive(jde float64) float64
func LastMercurySuperiorConjunction(jde float64) float64
func LastMercurySuperiorConjunctionInclusive(jde float64) float64
func LastMoonPlanetConjunction(jde float64, planet MoonPlanetConjunctionPlanet) float64
func LastNeptuneConjunction(jde float64) float64
func LastNeptuneEasternQuadrature(jde float64) float64
func LastNeptuneOpposition(jde float64) float64
func LastNeptuneProgradeToRetrograde(jde float64) float64
func LastNeptuneRetrogradeToPrograde(jde float64) float64
func LastNeptuneWesternQuadrature(jde float64) float64
func LastSaturnConjunction(jde float64) float64
func LastSaturnEasternQuadrature(jde float64) float64
func LastSaturnOpposition(jde float64) float64
func LastSaturnProgradeToRetrograde(jde float64) float64
func LastSaturnRetrogradeToPrograde(jde float64) float64
func LastSaturnWesternQuadrature(jde float64) float64
func LastUranusConjunction(jde float64) float64
func LastUranusEasternQuadrature(jde float64) float64
func LastUranusOpposition(jde float64) float64
func LastUranusProgradeToRetrograde(jde float64) float64
func LastUranusRetrogradeToPrograde(jde float64) float64
func LastUranusWesternQuadrature(jde float64) float64
func LastVenusConjunction(jde float64) float64
func LastVenusConjunctionStrict(jde float64) float64
func LastVenusGreatestElongation(jde float64) float64
func LastVenusGreatestElongationEast(jde float64) float64
func LastVenusGreatestElongationEastInclusive(jde float64) float64
func LastVenusGreatestElongationInclusive(jde float64) float64
func LastVenusGreatestElongationWest(jde float64) float64
func LastVenusGreatestElongationWestInclusive(jde float64) float64
func LastVenusInferiorConjunction(jde float64) float64
func LastVenusInferiorConjunctionInclusive(jde float64) float64
func LastVenusProgradeToRetrograde(jde float64) float64
func LastVenusProgradeToRetrogradeInclusive(jde float64) float64
func LastVenusRetrograde(jde float64) float64
func LastVenusRetrogradeInclusive(jde float64) float64
func LastVenusRetrogradeToPrograde(jde float64) float64
func LastVenusRetrogradeToProgradeInclusive(jde float64) float64
func LastVenusSuperiorConjunction(jde float64) float64
func LastVenusSuperiorConjunctionInclusive(jde float64) float64
func LoBoToRaDec(jde, lo, bo float64) (float64, float64)
func LoToRa(jde, lo, bo float64) float64
func LoadStarData() error
func LowSunHeight(jd, lon, lat, tz float64) float64
func MarsApparentBo(jd float64) float64
func MarsApparentBoN(jd float64, n int) float64
func MarsApparentDec(jd float64) float64
func MarsApparentDecN(jd float64, n int) float64
func MarsApparentLo(jd float64) float64
func MarsApparentLoBo(jd float64) (float64, float64)
func MarsApparentLoBoN(jd float64, n int) (float64, float64)
func MarsApparentLoN(jd float64, n int) float64
func MarsApparentRa(jd float64) float64
func MarsApparentRaDec(jd float64) (float64, float64)
func MarsApparentRaDecN(jd float64, n int) (float64, float64)
func MarsApparentRaN(jd float64, n int) float64
func MarsAscendingNode(jd float64) float64
func MarsAscendingNodeN(jd float64, n int) float64
func MarsAzimuth(jde, lon, lat, timezone float64) float64
func MarsAzimuthN(jde, lon, lat, timezone float64, n int) float64
func MarsB(jd float64) float64
func MarsBrightLimbPositionAngle(jd float64) float64
func MarsBrightLimbPositionAngleN(jd float64, n int) float64
func MarsCulminationTime(jde, lon, timezone float64) float64
func MarsCulminationTimeN(jde, lon, timezone float64, n int) float64
func MarsDescendingNode(jd float64) float64
func MarsDescendingNodeN(jd float64, n int) float64
func MarsDiameter(jd float64) float64
func MarsDiameterN(jd float64, n int) float64
func MarsHeight(jde, lon, lat, timezone float64) float64
func MarsHeightN(jde, lon, lat, timezone float64, n int) float64
func MarsHourAngle(jd, lon, timezone float64) float64
func MarsHourAngleN(jd, lon, timezone float64, n int) float64
func MarsIlluminatedFraction(jd float64) float64
func MarsIlluminatedFractionN(jd float64, n int) float64
func MarsL(jd float64) float64
func MarsMag(jd float64) float64
func MarsMagN(jd float64, n int) float64
func MarsPhaseAngle(jd float64) float64
func MarsPhaseAngleN(jd float64, n int) float64
func MarsR(jd float64) float64
func MarsRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func MarsRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func MarsSemidiameter(jd float64) float64
func MarsSemidiameterN(jd float64, n int) float64
func MarsSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func MarsSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func MarsTrueLo(jd float64) float64
func MarsTrueLoBo(jd float64) (float64, float64)
func MeanSiderealTime(jd float64) float64
func MeanSiderealTime1982(jd float64) float64
func MeanSiderealTime2006(jd_ut1 float64) float64
func MercuryApparentBo(jd float64) float64
func MercuryApparentBoN(jd float64, n int) float64
func MercuryApparentDec(jd float64) float64
func MercuryApparentDecN(jd float64, n int) float64
func MercuryApparentLo(jd float64) float64
func MercuryApparentLoBo(jd float64) (float64, float64)
func MercuryApparentLoBoN(jd float64, n int) (float64, float64)
func MercuryApparentLoN(jd float64, n int) float64
func MercuryApparentRa(jd float64) float64
func MercuryApparentRaDec(jd float64) (float64, float64)
func MercuryApparentRaDecN(jd float64, n int) (float64, float64)
func MercuryApparentRaN(jd float64, n int) float64
func MercuryAscendingNode(jd float64) float64
func MercuryAscendingNodeN(jd float64, n int) float64
func MercuryAzimuth(jde, lon, lat, timezone float64) float64
func MercuryAzimuthN(jde, lon, lat, timezone float64, n int) float64
func MercuryB(jd float64) float64
func MercuryBrightLimbPositionAngle(jd float64) float64
func MercuryBrightLimbPositionAngleN(jd float64, n int) float64
func MercuryCulminationTime(jde, lon, timezone float64) float64
func MercuryCulminationTimeN(jde, lon, timezone float64, n int) float64
func MercuryDescendingNode(jd float64) float64
func MercuryDescendingNodeN(jd float64, n int) float64
func MercuryDiameter(jd float64) float64
func MercuryDiameterN(jd float64, n int) float64
func MercuryHeight(jde, lon, lat, timezone float64) float64
func MercuryHeightN(jde, lon, lat, timezone float64, n int) float64
func MercuryHourAngle(jd, lon, timezone float64) float64
func MercuryHourAngleN(jd, lon, timezone float64, n int) float64
func MercuryIlluminatedFraction(jd float64) float64
func MercuryIlluminatedFractionN(jd float64, n int) float64
func MercuryL(jd float64) float64
func MercuryMag(jd float64) float64
func MercuryMagN(jd float64, n int) float64
func MercuryPhaseAngle(jd float64) float64
func MercuryPhaseAngleN(jd float64, n int) float64
func MercuryR(jd float64) float64
func MercuryRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func MercuryRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func MercurySemidiameter(jd float64) float64
func MercurySemidiameterN(jd float64, n int) float64
func MercurySetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func MercurySetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func MercurySunElongation(jde float64) float64
func MoonApparentDec(jd, lon, lat, tz float64) float64
func MoonApparentLo(jd float64) float64
func MoonApparentRa(jd, lon, lat float64, tz int) float64
func MoonAscendingNode(jd float64) float64
func MoonAscendingNodeN(jd float64, n int) float64
func MoonAway(jd float64) float64
func MoonAzimuth(jd, lon, lat, tz float64) float64
func MoonB(jd float64) float64
func MoonBrightLimbPositionAngle(jd float64) float64
func MoonBrightLimbPositionAngleN(jd float64, n int) float64
func MoonCalcNew(coordIndex int, jd float64) float64
func MoonCalcNewN(coordIndex int, jd float64, n int) float64
func MoonCulminationTime(jde, lon, lat, timezone float64) float64
func MoonDescendingNode(jd float64) float64
func MoonDescendingNodeN(jd float64, n int) float64
func MoonDiameter(jd float64) float64
func MoonDiameterN(jd float64, n int) float64
func MoonHeight(jd, lon, lat, tz float64) float64
func MoonI(jd float64) float64
func MoonLo(jd float64) float64
func MoonLonX(jd float64) float64
func MoonM(jd float64) float64
func MoonPhase(jd float64) float64
func MoonR(jd float64) float64
func MoonSemidiameter(jd float64) float64
func MoonSemidiameterN(jd float64, n int) float64
func MoonTimeAngle(jd, lon, lat, tz float64) float64
func MoonTopocentricBrightLimbPositionAngle(jd, observerLon, observerLat, height float64) float64
func MoonTopocentricBrightLimbPositionAngleN(jd, observerLon, observerLat, height float64, n int) float64
func MoonTrueBo(jd float64) float64
func MoonTrueDec(jd float64) float64
func MoonTrueLo(jd float64) float64
func MoonTrueRa(jd float64) float64
func MoonTrueRaDec(jd float64) (float64, float64)
func MorningTwilight(jd, lon, lat, tz, targetAltitude float64) (float64, error)
func MorningTwilightN(jd, lon, lat, tz, targetAltitude float64, n int) (float64, error)
func NeptuneApparentBo(jd float64) float64
func NeptuneApparentBoN(jd float64, n int) float64
func NeptuneApparentDec(jd float64) float64
func NeptuneApparentDecN(jd float64, n int) float64
func NeptuneApparentLo(jd float64) float64
func NeptuneApparentLoBo(jd float64) (float64, float64)
func NeptuneApparentLoBoN(jd float64, n int) (float64, float64)
func NeptuneApparentLoN(jd float64, n int) float64
func NeptuneApparentRa(jd float64) float64
func NeptuneApparentRaDec(jd float64) (float64, float64)
func NeptuneApparentRaDecN(jd float64, n int) (float64, float64)
func NeptuneApparentRaN(jd float64, n int) float64
func NeptuneAscendingNode(jd float64) float64
func NeptuneAscendingNodeN(jd float64, n int) float64
func NeptuneAzimuth(jde, lon, lat, timezone float64) float64
func NeptuneAzimuthN(jde, lon, lat, timezone float64, n int) float64
func NeptuneB(jd float64) float64
func NeptuneBrightLimbPositionAngle(jd float64) float64
func NeptuneBrightLimbPositionAngleN(jd float64, n int) float64
func NeptuneCulminationTime(jde, lon, timezone float64) float64
func NeptuneCulminationTimeN(jde, lon, timezone float64, n int) float64
func NeptuneDescendingNode(jd float64) float64
func NeptuneDescendingNodeN(jd float64, n int) float64
func NeptuneDiameter(jd float64) float64
func NeptuneDiameterN(jd float64, n int) float64
func NeptuneHeight(jde, lon, lat, timezone float64) float64
func NeptuneHeightN(jde, lon, lat, timezone float64, n int) float64
func NeptuneHourAngle(jd, lon, timezone float64) float64
func NeptuneHourAngleN(jd, lon, timezone float64, n int) float64
func NeptuneIlluminatedFraction(jd float64) float64
func NeptuneIlluminatedFractionN(jd float64, n int) float64
func NeptuneL(jd float64) float64
func NeptuneMag(jd float64) float64
func NeptuneMagN(jd float64, n int) float64
func NeptunePhaseAngle(jd float64) float64
func NeptunePhaseAngleN(jd float64, n int) float64
func NeptuneR(jd float64) float64
func NeptuneRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func NeptuneRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func NeptuneSemidiameter(jd float64) float64
func NeptuneSemidiameterN(jd float64, n int) float64
func NeptuneSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func NeptuneSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func NextJupiterConjunction(jde float64) float64
func NextJupiterEasternQuadrature(jde float64) float64
func NextJupiterOpposition(jde float64) float64
func NextJupiterProgradeToRetrograde(jde float64) float64
func NextJupiterRetrogradeToPrograde(jde float64) float64
func NextJupiterWesternQuadrature(jde float64) float64
func NextMarsConjunction(jde float64) float64
func NextMarsEasternQuadrature(jde float64) float64
func NextMarsOpposition(jde float64) float64
func NextMarsProgradeToRetrograde(jde float64) float64
func NextMarsRetrogradeToPrograde(jde float64) float64
func NextMarsWesternQuadrature(jde float64) float64
func NextMercuryConjunction(jde float64) float64
func NextMercuryConjunctionStrict(jde float64) float64
func NextMercuryGreatestElongation(jde float64) float64
func NextMercuryGreatestElongationEast(jde float64) float64
func NextMercuryGreatestElongationEastInclusive(jde float64) float64
func NextMercuryGreatestElongationInclusive(jde float64) float64
func NextMercuryGreatestElongationWest(jde float64) float64
func NextMercuryGreatestElongationWestInclusive(jde float64) float64
func NextMercuryInferiorConjunction(jde float64) float64
func NextMercuryInferiorConjunctionInclusive(jde float64) float64
func NextMercuryProgradeToRetrograde(jde float64) float64
func NextMercuryProgradeToRetrogradeInclusive(jde float64) float64
func NextMercuryRetrograde(jde float64) float64
func NextMercuryRetrogradeInclusive(jde float64) float64
func NextMercuryRetrogradeStrict(jde float64) float64
func NextMercuryRetrogradeToPrograde(jde float64) float64
func NextMercuryRetrogradeToProgradeInclusive(jde float64) float64
func NextMercurySuperiorConjunction(jde float64) float64
func NextMercurySuperiorConjunctionInclusive(jde float64) float64
func NextMoonPlanetConjunction(jde float64, planet MoonPlanetConjunctionPlanet) float64
func NextNeptuneConjunction(jde float64) float64
func NextNeptuneEasternQuadrature(jde float64) float64
func NextNeptuneOpposition(jde float64) float64
func NextNeptuneProgradeToRetrograde(jde float64) float64
func NextNeptuneRetrogradeToPrograde(jde float64) float64
func NextNeptuneWesternQuadrature(jde float64) float64
func NextSaturnConjunction(jde float64) float64
func NextSaturnEasternQuadrature(jde float64) float64
func NextSaturnOpposition(jde float64) float64
func NextSaturnProgradeToRetrograde(jde float64) float64
func NextSaturnRetrogradeToPrograde(jde float64) float64
func NextSaturnWesternQuadrature(jde float64) float64
func NextUranusConjunction(jde float64) float64
func NextUranusEasternQuadrature(jde float64) float64
func NextUranusOpposition(jde float64) float64
func NextUranusProgradeToRetrograde(jde float64) float64
func NextUranusRetrogradeToPrograde(jde float64) float64
func NextUranusWesternQuadrature(jde float64) float64
func NextVenusConjunction(jde float64) float64
func NextVenusConjunctionStrict(jde float64) float64
func NextVenusGreatestElongation(jde float64) float64
func NextVenusGreatestElongationEast(jde float64) float64
func NextVenusGreatestElongationEastInclusive(jde float64) float64
func NextVenusGreatestElongationInclusive(jde float64) float64
func NextVenusGreatestElongationWest(jde float64) float64
func NextVenusGreatestElongationWestInclusive(jde float64) float64
func NextVenusInferiorConjunction(jde float64) float64
func NextVenusInferiorConjunctionInclusive(jde float64) float64
func NextVenusProgradeToRetrograde(jde float64) float64
func NextVenusProgradeToRetrogradeInclusive(jde float64) float64
func NextVenusRetrograde(jde float64) float64
func NextVenusRetrogradeInclusive(jde float64) float64
func NextVenusRetrogradeToPrograde(jde float64) float64
func NextVenusRetrogradeToProgradeInclusive(jde float64) float64
func NextVenusSuperiorConjunction(jde float64) float64
func NextVenusSuperiorConjunctionInclusive(jde float64) float64
func Nutation1980(jd float64) (float64, float64)
func Nutation1980i(jd float64) float64
func Nutation1980s(jd float64) float64
func Nutation2000B(jd float64) (float64, float64)
func Nutation2000Bi(jd float64) float64
func Nutation2000Bs(jd float64) float64
func Obliquity1980(jd float64) float64
func OrbitApparentGeocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64)
func OrbitApparentGeocentricEquatorial(jd float64, elements OrbitElements) (ra, dec, distance float64)
func OrbitApparentTopocentricEquatorial(jd, observerLon, observerLat, observerHeight float64, elements OrbitElements) (ra, dec, distance float64)
func OrbitAsteroidMagnitudeHG(jd float64, elements OrbitElements, absoluteMagnitude, slopeParameter float64) float64
func OrbitAstrometricGeocentricEquatorialJ2000(jd float64, elements OrbitElements) (ra, dec, distance float64)
func OrbitAzimuth(jde, observerLon, observerLat, timezone, observerHeight float64, ...) float64
func OrbitCulminationTime(jde, observerLon, observerLat, timezone, observerHeight float64, ...) float64
func OrbitEarthDistance(jd float64, elements OrbitElements) float64
func OrbitEccentricAnomaly(jd float64, elements OrbitElements) float64
func OrbitElongation(jd float64, elements OrbitElements) float64
func OrbitGeocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64)
func OrbitGeocentricEclipticJ2000(jd float64, elements OrbitElements) (lon, lat, distance float64)
func OrbitGeocentricEquatorial(jd float64, elements OrbitElements) (ra, dec, distance float64)
func OrbitGeocentricEquatorialJ2000(jd float64, elements OrbitElements) (ra, dec, distance float64)
func OrbitHeight(jde, observerLon, observerLat, timezone, observerHeight float64, ...) float64
func OrbitHeliocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64)
func OrbitHeliocentricEclipticJ2000(jd float64, elements OrbitElements) (lon, lat, distance float64)
func OrbitHourAngle(jde, observerLon, observerLat, timezone, observerHeight float64, ...) float64
func OrbitIlluminatedFraction(jd float64, elements OrbitElements) float64
func OrbitMeanAnomaly(jd float64, elements OrbitElements) float64
func OrbitMeanMotion(elements OrbitElements) float64
func OrbitPhaseAngle(jd float64, elements OrbitElements) float64
func OrbitRiseTime(...) (float64, error)
func OrbitSetTime(...) (float64, error)
func OrbitSunDistance(jd float64, elements OrbitElements) float64
func OrbitTrueAnomaly(jd float64, elements OrbitElements) float64
func ParallacticAngleByHourAngle(hourAngle, dec, lat float64) float64
func Precess(ra, dec, jdFrom, jdTo float64) (float64, float64)
func PrecessIAU1976(ra0, dec0, startJD, targetJD float64) (float64, float64)
func RaDecToLoBo(jde, ra, dec float64) (float64, float64)
func RaToLo(jde, ra, dec float64) float64
func RefractionFromApparentAltitude(apparentAltitude, pressureHPa, temperatureC float64) float64
func RefractionFromTrueAltitude(trueAltitude, pressureHPa, temperatureC float64) float64
func SaturnApparentBo(jd float64) float64
func SaturnApparentBoN(jd float64, n int) float64
func SaturnApparentDec(jd float64) float64
func SaturnApparentDecN(jd float64, n int) float64
func SaturnApparentLo(jd float64) float64
func SaturnApparentLoBo(jd float64) (float64, float64)
func SaturnApparentLoBoN(jd float64, n int) (float64, float64)
func SaturnApparentLoN(jd float64, n int) float64
func SaturnApparentRa(jd float64) float64
func SaturnApparentRaDec(jd float64) (float64, float64)
func SaturnApparentRaDecN(jd float64, n int) (float64, float64)
func SaturnApparentRaN(jd float64, n int) float64
func SaturnAscendingNode(jd float64) float64
func SaturnAscendingNodeN(jd float64, n int) float64
func SaturnAzimuth(jde, lon, lat, timezone float64) float64
func SaturnAzimuthN(jde, lon, lat, timezone float64, n int) float64
func SaturnB(jd float64) float64
func SaturnBrightLimbPositionAngle(jd float64) float64
func SaturnBrightLimbPositionAngleN(jd float64, n int) float64
func SaturnCulminationTime(jde, lon, timezone float64) float64
func SaturnCulminationTimeN(jde, lon, timezone float64, n int) float64
func SaturnDescendingNode(jd float64) float64
func SaturnDescendingNodeN(jd float64, n int) float64
func SaturnDiameter(jd float64) float64
func SaturnDiameterN(jd float64, n int) float64
func SaturnHeight(jde, lon, lat, timezone float64) float64
func SaturnHeightN(jde, lon, lat, timezone float64, n int) float64
func SaturnHourAngle(jd, lon, timezone float64) float64
func SaturnHourAngleN(jd, lon, timezone float64, n int) float64
func SaturnIlluminatedFraction(jd float64) float64
func SaturnIlluminatedFractionN(jd float64, n int) float64
func SaturnL(jd float64) float64
func SaturnMag(jd float64) float64
func SaturnMagN(jd float64, n int) float64
func SaturnPhaseAngle(jd float64) float64
func SaturnPhaseAngleN(jd float64, n int) float64
func SaturnR(jd float64) float64
func SaturnRingAxis(jd float64) (majorAxis, minorAxis float64)
func SaturnRingAxisN(jd float64, n int) (majorAxis, minorAxis float64)
func SaturnRingB(jd float64) float64
func SaturnRingBN(jd float64, n int) float64
func SaturnRingDeltaU(jd float64) float64
func SaturnRingDeltaUN(jd float64, n int) float64
func SaturnRingParameters(jd float64) (...)
func SaturnRingParametersN(jd float64, n int) (...)
func SaturnRingPositionAngle(jd float64) float64
func SaturnRingPositionAngleN(jd float64, n int) float64
func SaturnRingSunB(jd float64) float64
func SaturnRingSunBN(jd float64, n int) float64
func SaturnRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func SaturnRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func SaturnSemidiameter(jd float64) float64
func SaturnSemidiameterN(jd float64, n int) float64
func SaturnSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func SaturnSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func SetDeltaTFn(fn func(float64, bool) float64)
func StandardAltitudeMoon(zenithShift, observerHeight, lat float64) float64
func StandardAltitudePlanet(aeroCorrection, observerHeight, lat float64) float64
func StandardAltitudeStar(aero bool, observerHeight, lat float64) float64
func StandardAltitudeSun(zenithShift, observerHeight, lat float64) float64
func StarAngularSeparation(ra1, dec1, ra2, dec2 float64) float64
func StarAzimuth(jde, ra, dec, lon, lat, timezone float64) float64
func StarCulminationTime(jde, ra, lon, timezone float64) float64
func StarHeight(jde, ra, dec, lon, lat, timezone float64) float64
func StarHourAngle(jde, ra, lon, timezone float64) float64
func StarParallacticAngle(jde, ra, dec, lon, lat, timezone float64) float64
func StarRiseSetTime(jde, ra, dec, lon, lat, height, timezone float64, aero, isRise bool) (float64, error)
func StarRiseTime(jde, ra, dec, lon, lat, height, timezone float64, aero bool) (float64, error)
func StarSetTime(jde, ra, dec, lon, lat, height, timezone float64, aero bool) (float64, error)
func SunApparentDec(jd float64) float64
func SunApparentLo(jd float64) float64
func SunApparentRa(jd float64) float64
func SunApparentRaDec(jd float64) (float64, float64)
func SunAzimuth(jd, lon, lat, tz float64) float64
func SunAzimuthN(jd, lon, lat, tz float64, n int) float64
func SunDiameter(jd float64) float64
func SunDiameterN(jd float64, n int) float64
func SunHeight(jd, lon, lat, tz float64) float64
func SunHeightN(jd, lon, lat, tz float64, n int) float64
func SunLo(jd float64) float64
func SunLoGXC(jd float64) float64
func SunLoGXCN(jd float64, n int) float64
func SunM(jd float64) float64
func SunMidFun(jd float64) float64
func SunMoonAngle(jd float64) float64
func SunMoonSeek(jde float64, degree float64) float64
func SunSC(lo, jd float64) float64
func SunSemidiameter(jd float64) float64
func SunSemidiameterN(jd float64, n int) float64
func SunTime(jd float64) float64
func SunTimeAngle(jd, lon, lat, tz float64) float64
func SunTimeAngleN(jd, lon, lat, tz float64, n int) float64
func SunTimeN(jd float64, n int) float64
func SunTrueDec(jd float64) float64
func SunTrueLo(jd float64) float64
func SunTrueRa(jd float64) float64
func TD2UT(jde float64, utToTD bool) float64
func TopocentricBo(lo, bo, lat, lon, jd, au, h float64) float64
func TopocentricDec(ra, dec, lat, lon, jd, au, h float64) float64
func TopocentricLo(lo, bo, lat, lon, jd, au, h float64) float64
func TopocentricRa(ra, dec, lat, lon, jd, au, h float64) float64
func TopocentricRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64)
func TrueAltitude(apparentAltitude, pressureHPa, temperatureC float64) float64
func TrueObliquity(JD float64) float64
func UranusApparentBo(jd float64) float64
func UranusApparentBoN(jd float64, n int) float64
func UranusApparentDec(jd float64) float64
func UranusApparentDecN(jd float64, n int) float64
func UranusApparentLo(jd float64) float64
func UranusApparentLoBo(jd float64) (float64, float64)
func UranusApparentLoBoN(jd float64, n int) (float64, float64)
func UranusApparentLoN(jd float64, n int) float64
func UranusApparentRa(jd float64) float64
func UranusApparentRaDec(jd float64) (float64, float64)
func UranusApparentRaDecN(jd float64, n int) (float64, float64)
func UranusApparentRaN(jd float64, n int) float64
func UranusAscendingNode(jd float64) float64
func UranusAscendingNodeN(jd float64, n int) float64
func UranusAzimuth(jde, lon, lat, timezone float64) float64
func UranusAzimuthN(jde, lon, lat, timezone float64, n int) float64
func UranusB(jd float64) float64
func UranusBrightLimbPositionAngle(jd float64) float64
func UranusBrightLimbPositionAngleN(jd float64, n int) float64
func UranusCulminationTime(jde, lon, timezone float64) float64
func UranusCulminationTimeN(jde, lon, timezone float64, n int) float64
func UranusDescendingNode(jd float64) float64
func UranusDescendingNodeN(jd float64, n int) float64
func UranusDiameter(jd float64) float64
func UranusDiameterN(jd float64, n int) float64
func UranusHeight(jde, lon, lat, timezone float64) float64
func UranusHeightN(jde, lon, lat, timezone float64, n int) float64
func UranusHourAngle(jd, lon, timezone float64) float64
func UranusHourAngleN(jd, lon, timezone float64, n int) float64
func UranusIlluminatedFraction(jd float64) float64
func UranusIlluminatedFractionN(jd float64, n int) float64
func UranusL(jd float64) float64
func UranusMag(jd float64) float64
func UranusMagN(jd float64, n int) float64
func UranusPhaseAngle(jd float64) float64
func UranusPhaseAngleN(jd float64, n int) float64
func UranusR(jd float64) float64
func UranusRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func UranusRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func UranusSemidiameter(jd float64) float64
func UranusSemidiameterN(jd float64, n int) float64
func UranusSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)
func UranusSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func ValidateCivilDate(year, month int, day float64) error
func VenusApparentBo(jd float64) float64
func VenusApparentBoN(jd float64, n int) float64
func VenusApparentDec(jd float64) float64
func VenusApparentDecN(jd float64, n int) float64
func VenusApparentLo(jd float64) float64
func VenusApparentLoBo(jd float64) (float64, float64)
func VenusApparentLoBoN(jd float64, n int) (float64, float64)
func VenusApparentLoN(jd float64, n int) float64
func VenusApparentRa(jd float64) float64
func VenusApparentRaDec(jd float64) (float64, float64)
func VenusApparentRaDecN(jd float64, n int) (float64, float64)
func VenusApparentRaN(jd float64, n int) float64
func VenusAscendingNode(jd float64) float64
func VenusAscendingNodeN(jd float64, n int) float64
func VenusAzimuth(jde, lon, lat, timezone float64) float64
func VenusAzimuthN(jde, lon, lat, timezone float64, n int) float64
func VenusB(jd float64) float64
func VenusBrightLimbPositionAngle(jd float64) float64
func VenusBrightLimbPositionAngleN(jd float64, n int) float64
func VenusCulminationTime(jde, lon, timezone float64) float64
func VenusCulminationTimeN(jde, lon, timezone float64, n int) float64
func VenusDescendingNode(jd float64) float64
func VenusDescendingNodeN(jd float64, n int) float64
func VenusDiameter(jd float64) float64
func VenusDiameterN(jd float64, n int) float64
func VenusHeight(jde, lon, lat, timezone float64) float64
func VenusHeightN(jde, lon, lat, timezone float64, n int) float64
func VenusHourAngle(jd, lon, tz float64) float64
func VenusHourAngleN(jd, lon, timezone float64, n int) float64
func VenusIlluminatedFraction(jd float64) float64
func VenusIlluminatedFractionN(jd float64, n int) float64
func VenusL(jd float64) float64
func VenusMag(jd float64) float64
func VenusMagN(jd float64, n int) float64
func VenusPhaseAngle(jd float64) float64
func VenusPhaseAngleN(jd float64, n int) float64
func VenusR(jd float64) float64
func VenusRiseTime(jd, lon, lat, tz, aeroCorrection, observerHeight float64) (float64, error)
func VenusRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func VenusSemidiameter(jd float64) float64
func VenusSemidiameterN(jd float64, n int) float64
func VenusSetTime(jd, lon, lat, tz, aeroCorrection, observerHeight float64) (float64, error)
func VenusSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)
func VenusSunElongation(jde float64) float64
type ApsisEvent
- func EarthAphelion(year int) ApsisEvent
- func EarthPerihelion(year int) ApsisEvent
- func MoonApogees(year int, month time.Month) []ApsisEvent
- func MoonPerigees(year int, month time.Month) []ApsisEvent
type CoordinateFrame
type DeclinationEvent
- func ClosestMoonMaximumNorthDeclination(jd float64) DeclinationEvent
- func ClosestMoonMaximumSouthDeclination(jd float64) DeclinationEvent
- func LastMoonMaximumNorthDeclination(jd float64) DeclinationEvent
- func LastMoonMaximumSouthDeclination(jd float64) DeclinationEvent
- func MoonMaximumNorthDeclinations(year int, month time.Month) []DeclinationEvent
- func MoonMaximumSouthDeclinations(year int, month time.Month) []DeclinationEvent
- func NextMoonMaximumNorthDeclination(jd float64) DeclinationEvent
- func NextMoonMaximumSouthDeclination(jd float64) DeclinationEvent
type Equatorial
type InnerStarData
- func (s InnerStarData) RaDecByJde(jde float64) (float64, float64)
type JupiterCentralMeridianInfo
- func JupiterCentralMeridians(jd float64) JupiterCentralMeridianInfo
- func JupiterCentralMeridiansN(jd float64, n int) JupiterCentralMeridianInfo
type JupiterGalileanObservation
- func JupiterGalileanSatelliteObservation(jd float64, satellite int) JupiterGalileanObservation
- func JupiterGalileanSatelliteObservations(jd float64) [4]JupiterGalileanObservation
type JupiterGalileanPhenomenon
- func JupiterGalileanSatellitePhenomena(jd float64) [4]JupiterGalileanPhenomenon
- func JupiterGalileanSatellitePhenomenon(jd float64, satellite int) JupiterGalileanPhenomenon
type JupiterGalileanPhenomenonContact
type JupiterGalileanPhenomenonContactEvent
- func ClosestJupiterGalileanPhenomenonContactEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonContactEvent
- func LastJupiterGalileanPhenomenonContactEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonContactEvent
- func NextJupiterGalileanPhenomenonContactEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonContactEvent
type JupiterGalileanPhenomenonContactPhase
type JupiterGalileanPhenomenonEvent
- func ClosestJupiterGalileanPhenomenonEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonEvent
- func LastJupiterGalileanPhenomenonEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonEvent
- func NextJupiterGalileanPhenomenonEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonEvent
type JupiterGalileanPhenomenonType
type JupiterGalileanState
- func JupiterGalileanSatelliteState(jd float64, satellite int) JupiterGalileanState
- func JupiterGalileanSatelliteStates(jd float64) [4]JupiterGalileanState
type LocalSolarEclipseDiagramFrame
type LocalSolarEclipseDiagramOptions
type LocalSolarEclipseDiagramResult
- func LocalSolarEclipseDiagram(seedJDE, lon, lat, height float64, options LocalSolarEclipseDiagramOptions) LocalSolarEclipseDiagramResult
- func LocalSolarEclipseDiagramIAUSingleK(seedJDE, lon, lat, height float64, options LocalSolarEclipseDiagramOptions) LocalSolarEclipseDiagramResult
- func LocalSolarEclipseDiagramNASABulletinSplitK(seedJDE, lon, lat, height float64, options LocalSolarEclipseDiagramOptions) LocalSolarEclipseDiagramResult
type LocalSolarEclipseResult
- func LocalSolarEclipse(seedJDE, lon, lat, height float64) LocalSolarEclipseResult
- func LocalSolarEclipseIAUSingleK(seedJDE, lon, lat, height float64) LocalSolarEclipseResult
- func LocalSolarEclipseNASABulletinSplitK(seedJDE, lon, lat, height float64) LocalSolarEclipseResult
type LunarEclipseDiagramOptions
type LunarEclipseDiagramPoint
type LunarEclipseDiagramResult
- func LunarEclipseDiagram(seedJDE float64, options LunarEclipseDiagramOptions) LunarEclipseDiagramResult
- func LunarEclipseDiagramChauvenet(seedJDE float64, options LunarEclipseDiagramOptions) LunarEclipseDiagramResult
- func LunarEclipseDiagramDanjon(seedJDE float64, options LunarEclipseDiagramOptions) LunarEclipseDiagramResult
type LunarEclipseResult
- func LunarEclipse(seedJDE float64) LunarEclipseResult
- func LunarEclipseChauvenet(seedJDE float64) LunarEclipseResult
- func LunarEclipseDanjon(seedJDE float64) LunarEclipseResult
type LunarEclipseType
type Matrix3
type MoonPhysicalInfo
- func MoonPhysical(jd float64) MoonPhysicalInfo
- func MoonPhysicalN(jd float64, n int) MoonPhysicalInfo
- func MoonTopocentricPhysical(jd, observerLon, observerLat, height float64) MoonPhysicalInfo
- func MoonTopocentricPhysicalN(jd, observerLon, observerLat, height float64, n int) MoonPhysicalInfo
type MoonPlanetConjunctionPlanet
type Observer
- func (o Observer) Validate() error
type OccultationPathOptions
- func (o OccultationPathOptions) Validate() error
type OccultationPathPoint
type OccultationPlanet
- func (p OccultationPlanet) String() string
- func (p OccultationPlanet) Validate() error
type OccultationSearchOptions
- func (o OccultationSearchOptions) Validate() error
type OccultationType
type OrbitElements
type PlanetOccultationDiagramFrame
type PlanetOccultationDiagramOptions
type PlanetOccultationDiagramResult
- func PlanetOccultationDiagram(info PlanetOccultationInfo, options PlanetOccultationDiagramOptions) PlanetOccultationDiagramResult
type PlanetOccultationFootprint
type PlanetOccultationInfo
- func FindBestPlanetOccultations(start, end time.Time, planet OccultationPlanet, ...) ([]PlanetOccultationInfo, error)
- func FindPlanetOccultations(start, end time.Time, planet OccultationPlanet, ...) ([]PlanetOccultationInfo, error)
type PlanetOccultationPath
- func FindPlanetOccultationPaths(start, end time.Time, planet OccultationPlanet, options OccultationPathOptions) ([]PlanetOccultationPath, error)
type PlanetPhysicalInfo
- func JupiterPhysical(jd float64) PlanetPhysicalInfo
- func JupiterPhysicalN(jd float64, n int) PlanetPhysicalInfo
- func MarsPhysical(jd float64) PlanetPhysicalInfo
- func MarsPhysicalN(jd float64, n int) PlanetPhysicalInfo
- func MercuryPhysical(jd float64) PlanetPhysicalInfo
- func MercuryPhysicalN(jd float64, n int) PlanetPhysicalInfo
- func NeptunePhysical(jd float64) PlanetPhysicalInfo
- func NeptunePhysicalN(jd float64, n int) PlanetPhysicalInfo
- func SaturnPhysical(jd float64) PlanetPhysicalInfo
- func SaturnPhysicalN(jd float64, n int) PlanetPhysicalInfo
- func UranusPhysical(jd float64) PlanetPhysicalInfo
- func UranusPhysicalN(jd float64, n int) PlanetPhysicalInfo
- func VenusPhysical(jd float64) PlanetPhysicalInfo
- func VenusPhysicalN(jd float64, n int) PlanetPhysicalInfo
type PlanetTransitResult
- func ClosestMercuryTransit(jde float64) PlanetTransitResult
- func ClosestVenusTransit(jde float64) PlanetTransitResult
- func LastMercuryTransit(jde float64) PlanetTransitResult
- func LastVenusTransit(jde float64) PlanetTransitResult
- func NextMercuryTransit(jde float64) PlanetTransitResult
- func NextVenusTransit(jde float64) PlanetTransitResult
type SolarEclipseCentrality
type SolarEclipsePartialAreaOptions
type SolarEclipsePartialAreaResult
- func SolarEclipsePartialArea(seedJDE float64, options SolarEclipsePartialAreaOptions) SolarEclipsePartialAreaResult
- func SolarEclipsePartialAreaIAUSingleK(seedJDE float64, options SolarEclipsePartialAreaOptions) SolarEclipsePartialAreaResult
- func SolarEclipsePartialAreaNASABulletinSplitK(seedJDE float64, options SolarEclipsePartialAreaOptions) SolarEclipsePartialAreaResult
type SolarEclipsePartialFootprint
type SolarEclipsePartialFootprintOptions
type SolarEclipsePartialFootprintsResult
- func SolarEclipsePartialFootprints(seedJDE float64, options SolarEclipsePartialFootprintOptions) SolarEclipsePartialFootprintsResult
- func SolarEclipsePartialFootprintsIAUSingleK(seedJDE float64, options SolarEclipsePartialFootprintOptions) SolarEclipsePartialFootprintsResult
- func SolarEclipsePartialFootprintsNASABulletinSplitK(seedJDE float64, options SolarEclipsePartialFootprintOptions) SolarEclipsePartialFootprintsResult
type SolarEclipsePathOptions
type SolarEclipsePathPoint
type SolarEclipsePathResult
- func SolarEclipseCentralPath(seedJDE float64, options SolarEclipsePathOptions) SolarEclipsePathResult
- func SolarEclipseCentralPathIAUSingleK(seedJDE float64, options SolarEclipsePathOptions) SolarEclipsePathResult
- func SolarEclipseCentralPathNASABulletinSplitK(seedJDE float64, options SolarEclipsePathOptions) SolarEclipsePathResult
type SolarEclipseRadiusModel
type SolarEclipseResult
- func SolarEclipse(seedJDE float64) SolarEclipseResult
- func SolarEclipseIAUSingleK(seedJDE float64) SolarEclipseResult
- func SolarEclipseNASABulletinSplitK(seedJDE float64) SolarEclipseResult
type SolarEclipseType
type StarCoordinate
- func StarCoordinateFromStarData(star StarData) (StarCoordinate, error)
- func (s StarCoordinate) Validate() error
type StarData
- func StarDataByChinese(name string) (StarData, error)
- func StarDataByHR(hr int) (StarData, error)
- func (s StarData) RaDecByDate(date time.Time) (float64, float64)
type StarOccultationDiagramFrame
type StarOccultationDiagramOptions
type StarOccultationDiagramResult
- func StarOccultationDiagram(info StarOccultationInfo, star StarCoordinate, ...) StarOccultationDiagramResult
type StarOccultationInfo
- func FindBestStarOccultations(start, end time.Time, star StarCoordinate, options OccultationSearchOptions) ([]StarOccultationInfo, error)
- func FindStarOccultations(start, end time.Time, star StarCoordinate, longitude, latitude, height float64, ...) ([]StarOccultationInfo, error)
type StarOccultationPath
- func FindStarOccultationPaths(start, end time.Time, star StarCoordinate, options OccultationPathOptions) ([]StarOccultationPath, error)
type SunPhysicalInfo
- func SunPhysical(jd float64) SunPhysicalInfo
- func SunPhysicalN(jd float64, n int) SunPhysicalInfo
type Vector3
- func OrbitAstrometricGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3
- func OrbitGeocentricXYZ(jd float64, elements OrbitElements) Vector3
- func OrbitGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3
- func OrbitHeliocentricXYZ(jd float64, elements OrbitElements) Vector3
- func OrbitHeliocentricXYZJ2000(jd float64, elements OrbitElements) Vector3

Constants ¶

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const (
	EARTH_EQUATORIAL_RADIUS float64 = 6378137.0
	EARTH_POLAR_RADIUS      float64 = 6356752.3
	EARTH_AVERAGE_RADIUS    float64 = 6371393.0
)

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const (
	AS2R = 4.848136811095359935899141e-6 // 角秒到弧度的转换因子
	D2PI = 6.283185307179586476925287    // 2π
	EPS0 = 84381.406 * AS2R              // J2000.0历元的黄赤交角(弧度)
)

常量定义

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const (
	JUPITER_S_PERIOD = 1 / ((1 / 365.256363004) - (1 / 4332.59))
)

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const (
	MARS_S_PERIOD = 1 / ((1 / 365.256363004) - (1 / 686.98))
)

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const (
	MERCURY_S_PERIOD = 1 / ((1 / 87.9691) - (1 / 365.256363004))
)

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const (
	NEPTUNE_S_PERIOD = 1 / ((1 / 365.256363004) - (1 / 60190.03))
)

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const (
	SATURN_S_PERIOD = 1 / ((1 / 365.256363004) - (1 / 10759.0))
)

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const (
	URANUS_S_PERIOD = 1 / ((1 / 365.256363004) - (1 / 30799.095))
)

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const (
	VENUS_S_PERIOD = 1 / ((1 / 224.701) - (1 / 365.256363004))
)

Variables ¶

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var (
	ErrNeverRise               = errors.New("rise event does not occur on this date")
	ErrNeverSet                = errors.New("set event does not occur on this date")
	ErrNotOnThisDate           = errors.New("rise/set event occurs on adjacent date")
	ErrInvalidObservationInput = errors.New("invalid observation input")
)

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var ErrInvalidCivilDate = errors.New("invalid civil date")

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var ErrInvalidOccultationInput = errors.New("invalid lunar occultation input")

ErrInvalidOccultationInput 表示月掩输入契约无效。 ErrInvalidOccultationInput reports invalid lunar-occultation contract input.

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var ErrOccultationPathSamplingLimit = errors.New("lunar occultation path sampling limit exceeded")

ErrOccultationPathSamplingLimit 表示请求的时间步长、中心线间距或有限盘面采样超过确定性的工作量或输出预算。 ErrOccultationPathSamplingLimit reports that the requested time step, center-line spacing, or aggregate finite-disk sampling would exceed the implementation's deterministic work or output budget.

Functions ¶

func AJupiterX ¶

func AJupiterX(jd float64) float64

func AJupiterXYZ ¶

func AJupiterXYZ(jd float64) (float64, float64, float64)

func AJupiterY ¶

func AJupiterY(jd float64) float64

func AJupiterZ ¶

func AJupiterZ(jd float64) float64

func AMarsX ¶

func AMarsX(jd float64) float64

func AMarsXYZ ¶

func AMarsXYZ(jd float64) (float64, float64, float64)

func AMarsY ¶

func AMarsY(jd float64) float64

func AMarsZ ¶

func AMarsZ(jd float64) float64

func AMercuryX ¶

func AMercuryX(jd float64) float64

func AMercuryXYZ ¶

func AMercuryXYZ(jd float64) (float64, float64, float64)

func AMercuryY ¶

func AMercuryY(jd float64) float64

func AMercuryZ ¶

func AMercuryZ(jd float64) float64

func ANeptuneX ¶

func ANeptuneX(jd float64) float64

func ANeptuneXYZ ¶

func ANeptuneXYZ(jd float64) (float64, float64, float64)

func ANeptuneY ¶

func ANeptuneY(jd float64) float64

func ANeptuneZ ¶

func ANeptuneZ(jd float64) float64

func ASaturnX ¶

func ASaturnX(jd float64) float64

func ASaturnXYZ ¶

func ASaturnXYZ(jd float64) (float64, float64, float64)

func ASaturnY ¶

func ASaturnY(jd float64) float64

func ASaturnZ ¶

func ASaturnZ(jd float64) float64

func AUranusX ¶

func AUranusX(jd float64) float64

func AUranusXYZ ¶

func AUranusXYZ(jd float64) (float64, float64, float64)

func AUranusY ¶

func AUranusY(jd float64) float64

func AUranusZ ¶

func AUranusZ(jd float64) float64

func AVenusX ¶

func AVenusX(jd float64) float64

func AVenusXYZ ¶

func AVenusXYZ(jd float64) (float64, float64, float64)

func AVenusY ¶

func AVenusY(jd float64) float64

func AVenusZ ¶

func AVenusZ(jd float64) float64

func ApparentAltitude ¶

func ApparentAltitude(trueAltitude, pressureHPa, temperatureC float64) float64

ApparentAltitude 视高度角，单位度；输入为真高度角。

func ApparentSiderealTime ¶

func ApparentSiderealTime(jd float64) float64

ApparentSiderealTime 视恒星时，计算章动

func ApparentSiderealTime1982 ¶

func ApparentSiderealTime1982(jd float64) float64

ApparentSiderealTime1982 视恒星时，计算章动

func ApparentSiderealTime2006 ¶

func ApparentSiderealTime2006(jd float64) float64

ApparentSiderealTime2006 视恒星时，计算章动

func BoToDec ¶

func BoToDec(jde, lo, bo float64) float64

func CalcMoonS ¶

func CalcMoonS(year float64, phaseType int) float64

* C=0朔月时刻 =1 望月

func CalcMoonSH ¶

func CalcMoonSH(year float64, phaseType int) float64

func CalcMoonSHByJDE ¶

func CalcMoonSHByJDE(jde float64, phaseType int) float64

func CalcMoonX ¶

func CalcMoonX(year float64, quarterType int) float64

func CalcMoonXH ¶

func CalcMoonXH(year float64, quarterType int) float64

func CalcMoonXHByJDE ¶

func CalcMoonXHByJDE(jde float64, quarterType int) float64

func ClosestMoonPlanetConjunction ¶ added in v0.1.4

func ClosestMoonPlanetConjunction(jde float64, planet MoonPlanetConjunctionPlanet) float64

ClosestMoonPlanetConjunction 离指定时刻最近一次行星合月（赤经合） / closest Moon-planet conjunction to jde.

func ConstellationCode ¶

func ConstellationCode(ra, dec, jde float64) string

ConstellationCode returns the IAU constellation code / 返回 IAU 星座代码。

func ConstellationNameByCodeEN ¶

func ConstellationNameByCodeEN(code string) string

ConstellationNameByCodeEN returns the English name for a code / 返回星座代码对应的英文名。

func ConstellationNameByCodeZH ¶

func ConstellationNameByCodeZH(code string) string

ConstellationNameByCodeZH returns the Chinese name for a code / 返回星座代码对应的中文名。

func ConstellationNameEN ¶

func ConstellationNameEN(ra, dec, jde float64) string

ConstellationNameEN returns the English constellation name / 返回英文星座名。

func ConstellationNameZH ¶

func ConstellationNameZH(ra, dec, jde float64) string

func CulminationTime ¶

func CulminationTime(jd, lon, tz float64) float64

太阳中天时刻，通过均时差计算

func CulminationTimeN ¶

func CulminationTimeN(jd, lon, tz float64, n int) float64

func Date2JDE ¶

func Date2JDE(date time.Time) float64

Date2JDE 日期转儒略日

func DecToBo ¶

func DecToBo(jde, ra, dec float64) float64

func DefaultDeltaTv2 ¶

func DefaultDeltaTv2(date float64, isJd bool) float64

func DeltaT ¶

func DeltaT(date float64, isJDE bool) float64

func DeltaTSplineY ¶

func DeltaTSplineY(y float64) float64

使用Stephenson等人(2016)和Morrison等人(2021)的拟合和外推公式计算Delta T http://astro.ukho.gov.uk/nao/lvm/ 2010年后的系数已修改以包含2019年后的数据返回Delta T，单位为秒

func DeltaTv2 ¶

func DeltaTv2(jd float64) float64

func Distance ¶

func Distance(jd float64) float64

func EarthAway ¶

func EarthAway(jd float64) float64

func EarthAwayN ¶

func EarthAwayN(jd float64, n int) float64

func EarthJupiterAway ¶

func EarthJupiterAway(jd float64) float64

func EarthJupiterAwayN ¶

func EarthJupiterAwayN(jd float64, n int) float64

EarthJupiterAwayN 地木距离（截断版） / truncated Earth-Jupiter distance.

func EarthMarsAway ¶

func EarthMarsAway(jd float64) float64

func EarthMarsAwayN ¶

func EarthMarsAwayN(jd float64, n int) float64

EarthMarsAwayN 地火距离（截断版） / truncated Earth-Mars distance.

func EarthMercuryAway ¶

func EarthMercuryAway(jd float64) float64

func EarthMercuryAwayN ¶

func EarthMercuryAwayN(jd float64, n int) float64

EarthMercuryAwayN 地水距离（截断版） / truncated Earth-Mercury distance.

func EarthNeptuneAway ¶

func EarthNeptuneAway(jd float64) float64

func EarthNeptuneAwayN ¶

func EarthNeptuneAwayN(jd float64, n int) float64

EarthNeptuneAwayN 地海距离（截断版） / truncated Earth-Neptune distance.

func EarthPI ¶

func EarthPI(jd float64) float64

func EarthRotationAngle ¶

func EarthRotationAngle(jd_ut1 float64) float64

EarthRotationAngle 计算地球自转角 (ERA) jd_ut1: UT1 时间的儒略日返回值: 地球自转角 (弧度)

func EarthSaturnAway ¶

func EarthSaturnAway(jd float64) float64

func EarthSaturnAwayN ¶

func EarthSaturnAwayN(jd float64, n int) float64

EarthSaturnAwayN 地土距离（截断版） / truncated Earth-Saturn distance.

func EarthUranusAway ¶

func EarthUranusAway(jd float64) float64

func EarthUranusAwayN ¶

func EarthUranusAwayN(jd float64, n int) float64

EarthUranusAwayN 地天距离（截断版） / truncated Earth-Uranus distance.

func EarthVenusAway ¶

func EarthVenusAway(jd float64) float64

func EarthVenusAwayN ¶

func EarthVenusAwayN(jd float64, n int) float64

EarthVenusAwayN 地金距离（截断版） / truncated Earth-Venus distance.

func Earthe ¶

func Earthe(jd float64) float64

@name 地球偏心率

func EclipticObliquity ¶

func EclipticObliquity(jde float64, nutation bool) float64

黄赤交角、nutation==true时，计算交角章动

func EveningTwilight ¶

func EveningTwilight(jd, lon, lat, tz, targetAltitude float64) (float64, error)

* 昏朦影传入当天0时时刻

func EveningTwilightN ¶

func EveningTwilightN(jd, lon, lat, tz, targetAltitude float64, n int) (float64, error)

func GXCBo ¶

func GXCBo(lo, bo, jd float64) float64

func GXCLo ¶

func GXCLo(lo, bo, jd float64) float64

func GeocentricRadius ¶

func GeocentricRadius(lat float64) float64

GeocentricRadius 地心直径与纬度的关系

func GetDeltaTFn ¶

func GetDeltaTFn() func(float64, bool) float64

func GetGanZhi ¶

func GetGanZhi(year int) string

GetGanZhi 年干支 / ganzhi for a year number.

func GetJQTime ¶

func GetJQTime(year, angle int) float64

func GetJieqiLoops ¶

func GetJieqiLoops(year, loop int) []float64

func GetLunar ¶

func GetLunar(year, month, day int, tz float64) (lyear, lmonth, lday int, leap bool, result string)

func GetMoonCir ¶

func GetMoonCir() [][][]float64

GetMoonCir 返回月球级数系数的独立副本。月球计算直接读取包内的大型不可变数据，避免重复构建这组大型不可变数据。 GetMoonCir returns an independent copy of the lunar-series coefficients. Moon calculations read the package-owned table directly so repeated calls do not rebuild this large immutable data set.

func GetMoonLoops ¶

func GetMoonLoops(year float64, loop int) []float64

func GetMoonRiseTime ¶

func GetMoonRiseTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)

func GetMoonSetTime ¶

func GetMoonSetTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)

func GetMoonTZTime ¶

func GetMoonTZTime(jd, lon, lat, tz float64) float64

废弃

func GetNowJDE ¶

func GetNowJDE() (nowJDE float64)

@name: 获得当前儒略日时间：当地世界时，非格林尼治时间

func GetShiErCi ¶

func GetShiErCi(jd float64) string

GetShiErCi 十二次 / twelve divisions of the ecliptic in traditional Chinese astronomy.

func GetSolar ¶

func GetSolar(year, month, day int, leap bool, tz float64) float64

func GetSunRiseTime ¶

func GetSunRiseTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)

GetSunRiseTime 精确计算日出时间，传入当日0时JDE

func GetSunRiseTimeN ¶

func GetSunRiseTimeN(julianDay, longitude, latitude, timeZone, zenithShift, height float64, n int) (float64, error)

func GetSunSetTime ¶

func GetSunSetTime(julianDay, longitude, latitude, timeZone, zenithShift, height float64) (float64, error)

GetSunSetTime 精确计算日落时间，传入当日0时JDE

func GetSunSetTimeN ¶

func GetSunSetTimeN(julianDay, longitude, latitude, timeZone, zenithShift, height float64, n int) (float64, error)

func GetWuHouTime ¶

func GetWuHouTime(Year, Angle int) float64

GetWuHouTime 七十二候时刻 / time of a pentad marker in traditional Chinese calendrics.

func HMoonApparentDec ¶

func HMoonApparentDec(jd, lon, lat, tz float64) float64

func HMoonApparentDecN ¶

func HMoonApparentDecN(jd, lon, lat, tz float64, n int) float64

func HMoonApparentLo ¶

func HMoonApparentLo(jd float64) float64

* @name 月球视黄经

func HMoonApparentLoN ¶

func HMoonApparentLoN(jd float64, n int) float64

func HMoonApparentRa ¶

func HMoonApparentRa(jd, lon, lat, tz float64) float64

func HMoonApparentRaDec ¶

func HMoonApparentRaDec(jd, lon, lat, tz float64) (float64, float64)

* * 传入世界时

func HMoonApparentRaDecN ¶

func HMoonApparentRaDecN(jd, lon, lat, tz float64, n int) (float64, float64)

func HMoonApparentRaN ¶

func HMoonApparentRaN(jd, lon, lat, tz float64, n int) float64

func HMoonAway ¶

func HMoonAway(jd float64) float64

func HMoonAwayN ¶

func HMoonAwayN(jd float64, n int) float64

func HMoonAzimuth ¶

func HMoonAzimuth(jd, lon, lat, tz float64) float64

func HMoonAzimuthN ¶

func HMoonAzimuthN(jd, lon, lat, tz float64, n int) float64

func HMoonGeocentricApparentDec ¶ added in v0.1.4

func HMoonGeocentricApparentDec(jd float64) float64

HMoonGeocentricApparentDec 月亮地心视赤纬 / apparent geocentric declination of the Moon.

func HMoonGeocentricApparentDecN ¶ added in v0.1.4

func HMoonGeocentricApparentDecN(jd float64, n int) float64

HMoonGeocentricApparentDecN 月亮地心视赤纬（截断版） / truncated apparent geocentric declination of the Moon.

func HMoonGeocentricApparentRa ¶ added in v0.1.4

func HMoonGeocentricApparentRa(jd float64) float64

HMoonGeocentricApparentRa 月亮地心视赤经 / apparent geocentric right ascension of the Moon.

func HMoonGeocentricApparentRaDec ¶ added in v0.1.4

func HMoonGeocentricApparentRaDec(jd float64) (float64, float64)

HMoonGeocentricApparentRaDec 月亮地心视赤经、视赤纬 / apparent geocentric right ascension and declination of the Moon.

func HMoonGeocentricApparentRaDecN ¶ added in v0.1.4

func HMoonGeocentricApparentRaDecN(jd float64, n int) (float64, float64)

HMoonGeocentricApparentRaDecN 月亮地心视赤经、视赤纬（截断版） / truncated apparent geocentric right ascension and declination of the Moon.

func HMoonGeocentricApparentRaN ¶ added in v0.1.4

func HMoonGeocentricApparentRaN(jd float64, n int) float64

HMoonGeocentricApparentRaN 月亮地心视赤经（截断版） / truncated apparent geocentric right ascension of the Moon.

func HMoonGeocentricTrueDec ¶ added in v0.1.4

func HMoonGeocentricTrueDec(jd float64) float64

HMoonGeocentricTrueDec 月亮地心真赤纬 / true geocentric declination of the Moon.

func HMoonGeocentricTrueDecN ¶ added in v0.1.4

func HMoonGeocentricTrueDecN(jd float64, n int) float64

HMoonGeocentricTrueDecN 月亮地心真赤纬（截断版） / truncated true geocentric declination of the Moon.

func HMoonGeocentricTrueRa ¶ added in v0.1.4

func HMoonGeocentricTrueRa(jd float64) float64

HMoonGeocentricTrueRa 月亮地心真赤经 / true geocentric right ascension of the Moon.

func HMoonGeocentricTrueRaDec ¶ added in v0.1.4

func HMoonGeocentricTrueRaDec(jd float64) (float64, float64)

HMoonGeocentricTrueRaDec 月亮地心真赤经、真赤纬 / true geocentric right ascension and declination of the Moon.

func HMoonGeocentricTrueRaDecN ¶ added in v0.1.4

func HMoonGeocentricTrueRaDecN(jd float64, n int) (float64, float64)

HMoonGeocentricTrueRaDecN 月亮地心真赤经、真赤纬（截断版） / truncated true geocentric right ascension and declination of the Moon.

func HMoonGeocentricTrueRaN ¶ added in v0.1.4

func HMoonGeocentricTrueRaN(jd float64, n int) float64

HMoonGeocentricTrueRaN 月亮地心真赤经（截断版） / truncated true geocentric right ascension of the Moon.

func HMoonHeight ¶

func HMoonHeight(jd, lon, lat, tz float64) float64

func HMoonHeightN ¶

func HMoonHeightN(jd, lon, lat, tz float64, n int) float64

func HMoonTrueBo ¶

func HMoonTrueBo(jd float64) float64

func HMoonTrueBoN ¶

func HMoonTrueBoN(jd float64, n int) float64

func HMoonTrueDec ¶

func HMoonTrueDec(jd float64) float64

* 月球真赤纬

func HMoonTrueDecN ¶

func HMoonTrueDecN(jd float64, n int) float64

func HMoonTrueLo ¶

func HMoonTrueLo(jd float64) float64

func HMoonTrueLoN ¶

func HMoonTrueLoN(jd float64, n int) float64

func HMoonTrueRa ¶

func HMoonTrueRa(jd float64) float64

* 月球真赤经

func HMoonTrueRaDec ¶

func HMoonTrueRaDec(jd float64) (float64, float64)

func HMoonTrueRaDecN ¶

func HMoonTrueRaDecN(jd float64, n int) (float64, float64)

func HMoonTrueRaN ¶

func HMoonTrueRaN(jd float64, n int) float64

func HSunApparentDec ¶

func HSunApparentDec(jd float64) float64

func HSunApparentDecN ¶

func HSunApparentDecN(jd float64, n int) float64

func HSunApparentLo ¶

func HSunApparentLo(jd float64) float64

func HSunApparentLoN ¶

func HSunApparentLoN(jd float64, n int) float64

func HSunApparentRa ¶

func HSunApparentRa(jd float64) float64

func HSunApparentRaDec ¶

func HSunApparentRaDec(jd float64) (float64, float64)

func HSunApparentRaDecN ¶

func HSunApparentRaDecN(jd float64, n int) (float64, float64)

func HSunApparentRaN ¶

func HSunApparentRaN(jd float64, n int) float64

func HSunTrueBo ¶

func HSunTrueBo(jd float64) float64

func HSunTrueBoN ¶

func HSunTrueBoN(jd float64, n int) float64

HSunTrueBoN 高精度太阳真黄纬，n<0 时取全量 VSOP 项。

func HSunTrueDec ¶

func HSunTrueDec(jd float64) float64

func HSunTrueDecN ¶

func HSunTrueDecN(jd float64, n int) float64

func HSunTrueLo ¶

func HSunTrueLo(jd float64) float64

高精度，使用VSOP87

func HSunTrueLoN ¶

func HSunTrueLoN(jd float64, n int) float64

HSunTrueLoN 高精度太阳真黄经，n<0 时取全量 VSOP 项。

func HSunTrueRa ¶

func HSunTrueRa(jd float64) float64

func HSunTrueRaN ¶

func HSunTrueRaN(jd float64, n int) float64

func HeightDegree ¶

func HeightDegree(height float64) float64

HeightDistance 高度（单位：米）与地平线下角度的关系（单位：度）

func HeightDegreeByLat ¶

func HeightDegreeByLat(height, lat float64) float64

HeightDegreeByLat 不同纬度下高度（单位：米）与地平线下角度的关系（单位：度）

func HeightDistance ¶

func HeightDistance(height float64) float64

HeightDistance 高度与地平线距离的关系（单位：米）

func HeightDistanceByLat ¶

func HeightDistanceByLat(height, lat float64) float64

HeightDistanceByLat 不同纬度下高度与地平线距离的关系（单位：米）

func JDE2Date ¶

func JDE2Date(jd float64) time.Time

func JDE2DateByZone ¶

func JDE2DateByZone(jd float64, tz *time.Location, byZone bool) time.Time

JDE2DateByZone JDE（儒略日）转日期 jd: 儒略日 tz: 目标时区 byZone: (true: 传入的儒略日视为目标时区当地时间的儒略日，false: 传入的儒略日视为UTC时间的儒略日) 回参：转换后的日期，时区始终为目标时区

func JDECalc ¶

func JDECalc(year, month int, day float64) float64

@name: 儒略日计算 @dec: 计算给定时间的儒略日，1582年改力后为格里高利历，之前为儒略历 @ 请注意，传入的时间在天文计算中一般为力学时，应当注意和世界时的转化

func JQLospec ¶

func JQLospec(jd float64, target float64) float64

func JupiterApparentBo ¶

func JupiterApparentBo(jd float64) float64

func JupiterApparentBoN ¶

func JupiterApparentBoN(jd float64, n int) float64

JupiterApparentBoN 木星视黄纬（截断版） / truncated apparent ecliptic latitude of Jupiter.

func JupiterApparentDec ¶

func JupiterApparentDec(jd float64) float64

func JupiterApparentDecN ¶

func JupiterApparentDecN(jd float64, n int) float64

JupiterApparentDecN 木星视赤纬（截断版） / truncated apparent declination of Jupiter.

func JupiterApparentLo ¶

func JupiterApparentLo(jd float64) float64

func JupiterApparentLoBo ¶

func JupiterApparentLoBo(jd float64) (float64, float64)

func JupiterApparentLoBoN ¶

func JupiterApparentLoBoN(jd float64, n int) (float64, float64)

JupiterApparentLoBoN 木星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Jupiter.

func JupiterApparentLoN ¶

func JupiterApparentLoN(jd float64, n int) float64

JupiterApparentLoN 木星视黄经（截断版） / truncated apparent ecliptic longitude of Jupiter.

func JupiterApparentRa ¶

func JupiterApparentRa(jd float64) float64

func JupiterApparentRaDec ¶

func JupiterApparentRaDec(jd float64) (float64, float64)

func JupiterApparentRaDecN ¶

func JupiterApparentRaDecN(jd float64, n int) (float64, float64)

JupiterApparentRaDecN 木星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Jupiter.

func JupiterApparentRaN ¶

func JupiterApparentRaN(jd float64, n int) float64

JupiterApparentRaN 木星视赤经（截断版） / truncated apparent right ascension of Jupiter.

func JupiterAscendingNode ¶

func JupiterAscendingNode(jd float64) float64

JupiterAscendingNode 木星升交点黄经 / ascending node longitude of Jupiter.

func JupiterAscendingNodeN ¶

func JupiterAscendingNodeN(jd float64, n int) float64

JupiterAscendingNodeN 木星升交点黄经（截断版） / truncated ascending node longitude of Jupiter.

func JupiterAzimuth ¶

func JupiterAzimuth(jde, lon, lat, timezone float64) float64

func JupiterAzimuthN ¶

func JupiterAzimuthN(jde, lon, lat, timezone float64, n int) float64

JupiterAzimuthN 木星方位角（截断版） / truncated azimuth of Jupiter.

func JupiterB ¶

func JupiterB(jd float64) float64

func JupiterBrightLimbPositionAngle ¶

func JupiterBrightLimbPositionAngle(jd float64) float64

JupiterBrightLimbPositionAngle 木星亮面中心位置角 / position angle of Jupiter bright limb.

func JupiterBrightLimbPositionAngleN ¶

func JupiterBrightLimbPositionAngleN(jd float64, n int) float64

JupiterBrightLimbPositionAngleN 木星亮面中心位置角（截断版） / truncated position angle of Jupiter bright limb.

func JupiterCulminationTime ¶

func JupiterCulminationTime(jde, lon, timezone float64) float64

func JupiterCulminationTimeN ¶

func JupiterCulminationTimeN(jde, lon, timezone float64, n int) float64

JupiterCulminationTimeN 木星中天时间（截断版） / truncated culmination time of Jupiter.

func JupiterDSDE ¶

func JupiterDSDE(jd float64) (ds, de float64)

JupiterDSDE 木星 DS/DE 行星中心赤纬 / Jupiter planetocentric declinations of Sun and Earth.

func JupiterDSDEN ¶

func JupiterDSDEN(jd float64, n int) (ds, de float64)

JupiterDSDEN 木星 DS/DE 行星中心赤纬（截断版） / truncated Jupiter planetocentric declinations of Sun and Earth.

func JupiterDescendingNode ¶

func JupiterDescendingNode(jd float64) float64

JupiterDescendingNode 木星降交点黄经 / descending node longitude of Jupiter.

func JupiterDescendingNodeN ¶

func JupiterDescendingNodeN(jd float64, n int) float64

JupiterDescendingNodeN 木星降交点黄经（截断版） / truncated descending node longitude of Jupiter.

func JupiterDiameter ¶

func JupiterDiameter(jd float64) float64

JupiterDiameter 木星视直径，单位角秒 / apparent Jupiter diameter in arcseconds.

func JupiterDiameterN ¶

func JupiterDiameterN(jd float64, n int) float64

JupiterDiameterN 木星视直径（截断版），单位角秒 / truncated apparent Jupiter diameter in arcseconds.

func JupiterHeight ¶

func JupiterHeight(jde, lon, lat, timezone float64) float64

func JupiterHeightN ¶

func JupiterHeightN(jde, lon, lat, timezone float64, n int) float64

JupiterHeightN 木星高度角（截断版） / truncated altitude of Jupiter.

func JupiterHourAngle ¶

func JupiterHourAngle(jd, lon, timezone float64) float64

func JupiterHourAngleN ¶

func JupiterHourAngleN(jd, lon, timezone float64, n int) float64

JupiterHourAngleN 木星时角（截断版） / truncated hour angle of Jupiter.

func JupiterIlluminatedFraction ¶

func JupiterIlluminatedFraction(jd float64) float64

JupiterIlluminatedFraction 木星被照亮比例 / illuminated fraction of Jupiter.

func JupiterIlluminatedFractionN ¶

func JupiterIlluminatedFractionN(jd float64, n int) float64

JupiterIlluminatedFractionN 木星被照亮比例（截断版） / truncated illuminated fraction of Jupiter.

func JupiterL ¶

func JupiterL(jd float64) float64

func JupiterMag ¶

func JupiterMag(jd float64) float64

func JupiterMagN ¶

func JupiterMagN(jd float64, n int) float64

JupiterMagN 木星视星等（截断版） / truncated apparent magnitude of Jupiter.

func JupiterPhaseAngle ¶

func JupiterPhaseAngle(jd float64) float64

JupiterPhaseAngle 木星相位角 / phase angle of Jupiter.

func JupiterPhaseAngleN ¶

func JupiterPhaseAngleN(jd float64, n int) float64

JupiterPhaseAngleN 木星相位角（截断版） / truncated phase angle of Jupiter.

func JupiterR ¶

func JupiterR(jd float64) float64

func JupiterRiseTime ¶

func JupiterRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func JupiterRiseTimeN ¶

func JupiterRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

JupiterRiseTimeN 木星升起时间（截断版） / truncated rise time of Jupiter.

func JupiterSemidiameter ¶

func JupiterSemidiameter(jd float64) float64

JupiterSemidiameter 木星视半径，单位角秒 / apparent Jupiter semidiameter in arcseconds.

func JupiterSemidiameterN ¶

func JupiterSemidiameterN(jd float64, n int) float64

JupiterSemidiameterN 木星视半径（截断版），单位角秒 / truncated apparent Jupiter semidiameter in arcseconds.

func JupiterSetTime ¶

func JupiterSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func JupiterSetTimeN ¶

func JupiterSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

JupiterSetTimeN 木星落下时间（截断版） / truncated set time of Jupiter.

func LastJupiterConjunction ¶

func LastJupiterConjunction(jde float64) float64

func LastJupiterEasternQuadrature ¶

func LastJupiterEasternQuadrature(jde float64) float64

func LastJupiterOpposition ¶

func LastJupiterOpposition(jde float64) float64

func LastJupiterProgradeToRetrograde ¶

func LastJupiterProgradeToRetrograde(jde float64) float64

func LastJupiterRetrogradeToPrograde ¶

func LastJupiterRetrogradeToPrograde(jde float64) float64

func LastJupiterWesternQuadrature ¶

func LastJupiterWesternQuadrature(jde float64) float64

func LastMarsConjunction ¶

func LastMarsConjunction(jde float64) float64

func LastMarsEasternQuadrature ¶

func LastMarsEasternQuadrature(jde float64) float64

func LastMarsOpposition ¶

func LastMarsOpposition(jde float64) float64

func LastMarsProgradeToRetrograde ¶

func LastMarsProgradeToRetrograde(jde float64) float64

func LastMarsRetrogradeToPrograde ¶

func LastMarsRetrogradeToPrograde(jde float64) float64

func LastMarsWesternQuadrature ¶

func LastMarsWesternQuadrature(jde float64) float64

func LastMercuryConjunction ¶

func LastMercuryConjunction(jde float64) float64

func LastMercuryConjunctionStrict ¶ added in v0.1.3

func LastMercuryConjunctionStrict(jde float64) float64

func LastMercuryGreatestElongation ¶

func LastMercuryGreatestElongation(jde float64) float64

func LastMercuryGreatestElongationEast ¶

func LastMercuryGreatestElongationEast(jde float64) float64

func LastMercuryGreatestElongationEastInclusive ¶ added in v0.1.3

func LastMercuryGreatestElongationEastInclusive(jde float64) float64

func LastMercuryGreatestElongationInclusive ¶ added in v0.1.3

func LastMercuryGreatestElongationInclusive(jde float64) float64

func LastMercuryGreatestElongationWest ¶

func LastMercuryGreatestElongationWest(jde float64) float64

func LastMercuryGreatestElongationWestInclusive ¶ added in v0.1.3

func LastMercuryGreatestElongationWestInclusive(jde float64) float64

func LastMercuryInferiorConjunction ¶

func LastMercuryInferiorConjunction(jde float64) float64

func LastMercuryInferiorConjunctionInclusive ¶ added in v0.1.3

func LastMercuryInferiorConjunctionInclusive(jde float64) float64

func LastMercuryProgradeToRetrograde ¶

func LastMercuryProgradeToRetrograde(jde float64) float64

func LastMercuryProgradeToRetrogradeInclusive ¶ added in v0.1.3

func LastMercuryProgradeToRetrogradeInclusive(jde float64) float64

func LastMercuryRetrograde ¶

func LastMercuryRetrograde(jde float64) float64

func LastMercuryRetrogradeInclusive ¶ added in v0.1.3

func LastMercuryRetrogradeInclusive(jde float64) float64

func LastMercuryRetrogradeStrict ¶ added in v0.1.3

func LastMercuryRetrogradeStrict(jde float64) float64

func LastMercuryRetrogradeToPrograde ¶

func LastMercuryRetrogradeToPrograde(jde float64) float64

func LastMercuryRetrogradeToProgradeInclusive ¶ added in v0.1.3

func LastMercuryRetrogradeToProgradeInclusive(jde float64) float64

func LastMercurySuperiorConjunction ¶

func LastMercurySuperiorConjunction(jde float64) float64

func LastMercurySuperiorConjunctionInclusive ¶ added in v0.1.3

func LastMercurySuperiorConjunctionInclusive(jde float64) float64

func LastMoonPlanetConjunction ¶ added in v0.1.4

func LastMoonPlanetConjunction(jde float64, planet MoonPlanetConjunctionPlanet) float64

LastMoonPlanetConjunction 指定时刻之前最近一次行星合月（赤经合） / previous Moon-planet conjunction at or before jde.

func LastNeptuneConjunction ¶

func LastNeptuneConjunction(jde float64) float64

func LastNeptuneEasternQuadrature ¶

func LastNeptuneEasternQuadrature(jde float64) float64

func LastNeptuneOpposition ¶

func LastNeptuneOpposition(jde float64) float64

func LastNeptuneProgradeToRetrograde ¶

func LastNeptuneProgradeToRetrograde(jde float64) float64

func LastNeptuneRetrogradeToPrograde ¶

func LastNeptuneRetrogradeToPrograde(jde float64) float64

func LastNeptuneWesternQuadrature ¶

func LastNeptuneWesternQuadrature(jde float64) float64

func LastSaturnConjunction ¶

func LastSaturnConjunction(jde float64) float64

func LastSaturnEasternQuadrature ¶

func LastSaturnEasternQuadrature(jde float64) float64

func LastSaturnOpposition ¶

func LastSaturnOpposition(jde float64) float64

func LastSaturnProgradeToRetrograde ¶

func LastSaturnProgradeToRetrograde(jde float64) float64

func LastSaturnRetrogradeToPrograde ¶

func LastSaturnRetrogradeToPrograde(jde float64) float64

func LastSaturnWesternQuadrature ¶

func LastSaturnWesternQuadrature(jde float64) float64

func LastUranusConjunction ¶

func LastUranusConjunction(jde float64) float64

func LastUranusEasternQuadrature ¶

func LastUranusEasternQuadrature(jde float64) float64

func LastUranusOpposition ¶

func LastUranusOpposition(jde float64) float64

func LastUranusProgradeToRetrograde ¶

func LastUranusProgradeToRetrograde(jde float64) float64

func LastUranusRetrogradeToPrograde ¶

func LastUranusRetrogradeToPrograde(jde float64) float64

func LastUranusWesternQuadrature ¶

func LastUranusWesternQuadrature(jde float64) float64

func LastVenusConjunction ¶

func LastVenusConjunction(jde float64) float64

func LastVenusConjunctionStrict ¶ added in v0.1.3

func LastVenusConjunctionStrict(jde float64) float64

func LastVenusGreatestElongation ¶

func LastVenusGreatestElongation(jde float64) float64

func LastVenusGreatestElongationEast ¶

func LastVenusGreatestElongationEast(jde float64) float64

func LastVenusGreatestElongationEastInclusive ¶ added in v0.1.3

func LastVenusGreatestElongationEastInclusive(jde float64) float64

func LastVenusGreatestElongationInclusive ¶ added in v0.1.3

func LastVenusGreatestElongationInclusive(jde float64) float64

func LastVenusGreatestElongationWest ¶

func LastVenusGreatestElongationWest(jde float64) float64

func LastVenusGreatestElongationWestInclusive ¶ added in v0.1.3

func LastVenusGreatestElongationWestInclusive(jde float64) float64

func LastVenusInferiorConjunction ¶

func LastVenusInferiorConjunction(jde float64) float64

func LastVenusInferiorConjunctionInclusive ¶ added in v0.1.3

func LastVenusInferiorConjunctionInclusive(jde float64) float64

func LastVenusProgradeToRetrograde ¶

func LastVenusProgradeToRetrograde(jde float64) float64

func LastVenusProgradeToRetrogradeInclusive ¶ added in v0.1.3

func LastVenusProgradeToRetrogradeInclusive(jde float64) float64

func LastVenusRetrograde ¶

func LastVenusRetrograde(jde float64) float64

func LastVenusRetrogradeInclusive ¶ added in v0.1.3

func LastVenusRetrogradeInclusive(jde float64) float64

func LastVenusRetrogradeToPrograde ¶

func LastVenusRetrogradeToPrograde(jde float64) float64

func LastVenusRetrogradeToProgradeInclusive ¶ added in v0.1.3

func LastVenusRetrogradeToProgradeInclusive(jde float64) float64

func LastVenusSuperiorConjunction ¶

func LastVenusSuperiorConjunction(jde float64) float64

func LastVenusSuperiorConjunctionInclusive ¶ added in v0.1.3

func LastVenusSuperiorConjunctionInclusive(jde float64) float64

func LoBoToRaDec ¶

func LoBoToRaDec(jde, lo, bo float64) (float64, float64)

func LoToRa ¶

func LoToRa(jde, lo, bo float64) float64

* 坐标变换，黄道转赤道

func LoadStarData ¶

func LoadStarData() error

func LowSunHeight ¶

func LowSunHeight(jd, lon, lat, tz float64) float64

func MarsApparentBo ¶

func MarsApparentBo(jd float64) float64

func MarsApparentBoN ¶

func MarsApparentBoN(jd float64, n int) float64

MarsApparentBoN 火星视黄纬（截断版） / truncated apparent ecliptic latitude of Mars.

func MarsApparentDec ¶

func MarsApparentDec(jd float64) float64

func MarsApparentDecN ¶

func MarsApparentDecN(jd float64, n int) float64

MarsApparentDecN 火星视赤纬（截断版） / truncated apparent declination of Mars.

func MarsApparentLo ¶

func MarsApparentLo(jd float64) float64

func MarsApparentLoBo ¶

func MarsApparentLoBo(jd float64) (float64, float64)

func MarsApparentLoBoN ¶

func MarsApparentLoBoN(jd float64, n int) (float64, float64)

MarsApparentLoBoN 火星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Mars.

func MarsApparentLoN ¶

func MarsApparentLoN(jd float64, n int) float64

MarsApparentLoN 火星视黄经（截断版） / truncated apparent ecliptic longitude of Mars.

func MarsApparentRa ¶

func MarsApparentRa(jd float64) float64

func MarsApparentRaDec ¶

func MarsApparentRaDec(jd float64) (float64, float64)

func MarsApparentRaDecN ¶

func MarsApparentRaDecN(jd float64, n int) (float64, float64)

MarsApparentRaDecN 火星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Mars.

func MarsApparentRaN ¶

func MarsApparentRaN(jd float64, n int) float64

MarsApparentRaN 火星视赤经（截断版） / truncated apparent right ascension of Mars.

func MarsAscendingNode ¶

func MarsAscendingNode(jd float64) float64

MarsAscendingNode 火星升交点黄经 / ascending node longitude of Mars.

func MarsAscendingNodeN ¶

func MarsAscendingNodeN(jd float64, n int) float64

MarsAscendingNodeN 火星升交点黄经（截断版） / truncated ascending node longitude of Mars.

func MarsAzimuth ¶

func MarsAzimuth(jde, lon, lat, timezone float64) float64

func MarsAzimuthN ¶

func MarsAzimuthN(jde, lon, lat, timezone float64, n int) float64

MarsAzimuthN 火星方位角（截断版） / truncated azimuth of Mars.

func MarsB ¶

func MarsB(jd float64) float64

func MarsBrightLimbPositionAngle ¶

func MarsBrightLimbPositionAngle(jd float64) float64

MarsBrightLimbPositionAngle 火星亮面中心位置角 / position angle of Mars bright limb.

func MarsBrightLimbPositionAngleN ¶

func MarsBrightLimbPositionAngleN(jd float64, n int) float64

MarsBrightLimbPositionAngleN 火星亮面中心位置角（截断版） / truncated position angle of Mars bright limb.

func MarsCulminationTime ¶

func MarsCulminationTime(jde, lon, timezone float64) float64

func MarsCulminationTimeN ¶

func MarsCulminationTimeN(jde, lon, timezone float64, n int) float64

MarsCulminationTimeN 火星中天时间（截断版） / truncated culmination time of Mars.

func MarsDescendingNode ¶

func MarsDescendingNode(jd float64) float64

MarsDescendingNode 火星降交点黄经 / descending node longitude of Mars.

func MarsDescendingNodeN ¶

func MarsDescendingNodeN(jd float64, n int) float64

MarsDescendingNodeN 火星降交点黄经（截断版） / truncated descending node longitude of Mars.

func MarsDiameter ¶

func MarsDiameter(jd float64) float64

MarsDiameter 火星视直径，单位角秒 / apparent Mars diameter in arcseconds.

func MarsDiameterN ¶

func MarsDiameterN(jd float64, n int) float64

MarsDiameterN 火星视直径（截断版），单位角秒 / truncated apparent Mars diameter in arcseconds.

func MarsHeight ¶

func MarsHeight(jde, lon, lat, timezone float64) float64

func MarsHeightN ¶

func MarsHeightN(jde, lon, lat, timezone float64, n int) float64

MarsHeightN 火星高度角（截断版） / truncated altitude of Mars.

func MarsHourAngle ¶

func MarsHourAngle(jd, lon, timezone float64) float64

func MarsHourAngleN ¶

func MarsHourAngleN(jd, lon, timezone float64, n int) float64

MarsHourAngleN 火星时角（截断版） / truncated hour angle of Mars.

func MarsIlluminatedFraction ¶

func MarsIlluminatedFraction(jd float64) float64

MarsIlluminatedFraction 火星被照亮比例 / illuminated fraction of Mars.

func MarsIlluminatedFractionN ¶

func MarsIlluminatedFractionN(jd float64, n int) float64

MarsIlluminatedFractionN 火星被照亮比例（截断版） / truncated illuminated fraction of Mars.

func MarsL ¶

func MarsL(jd float64) float64

func MarsMag ¶

func MarsMag(jd float64) float64

func MarsMagN ¶

func MarsMagN(jd float64, n int) float64

MarsMagN 火星视星等（截断版） / truncated apparent magnitude of Mars.

func MarsPhaseAngle ¶

func MarsPhaseAngle(jd float64) float64

MarsPhaseAngle 火星相位角 / phase angle of Mars.

func MarsPhaseAngleN ¶

func MarsPhaseAngleN(jd float64, n int) float64

MarsPhaseAngleN 火星相位角（截断版） / truncated phase angle of Mars.

func MarsR ¶

func MarsR(jd float64) float64

func MarsRiseTime ¶

func MarsRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func MarsRiseTimeN ¶

func MarsRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

MarsRiseTimeN 火星升起时间（截断版） / truncated rise time of Mars.

func MarsSemidiameter ¶

func MarsSemidiameter(jd float64) float64

MarsSemidiameter 火星视半径，单位角秒 / apparent Mars semidiameter in arcseconds.

func MarsSemidiameterN ¶

func MarsSemidiameterN(jd float64, n int) float64

MarsSemidiameterN 火星视半径（截断版），单位角秒 / truncated apparent Mars semidiameter in arcseconds.

func MarsSetTime ¶

func MarsSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func MarsSetTimeN ¶

func MarsSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

MarsSetTimeN 火星落下时间（截断版） / truncated set time of Mars.

func MarsTrueLo ¶

func MarsTrueLo(jd float64) float64

func MarsTrueLoBo ¶

func MarsTrueLoBo(jd float64) (float64, float64)

func MeanSiderealTime ¶

func MeanSiderealTime(jd float64) float64

MeanSiderealTime 平恒星时

func MeanSiderealTime1982 ¶

func MeanSiderealTime1982(jd float64) float64

MeanSiderealTime1982 不含章动下的恒星时

func MeanSiderealTime2006 ¶

func MeanSiderealTime2006(jd_ut1 float64) float64

MeanSiderealTime2006 计算格林尼治平恒星时 (GMST) jd_ut1: UT1 时间的儒略日 jd_tt: TT 时间的儒略日返回值: 格林尼治平恒星时 (弧度)

func MercuryApparentBo ¶

func MercuryApparentBo(jd float64) float64

func MercuryApparentBoN ¶

func MercuryApparentBoN(jd float64, n int) float64

MercuryApparentBoN 水星视黄纬（截断版） / truncated apparent ecliptic latitude of Mercury.

func MercuryApparentDec ¶

func MercuryApparentDec(jd float64) float64

func MercuryApparentDecN ¶

func MercuryApparentDecN(jd float64, n int) float64

MercuryApparentDecN 水星视赤纬（截断版） / truncated apparent declination of Mercury.

func MercuryApparentLo ¶

func MercuryApparentLo(jd float64) float64

func MercuryApparentLoBo ¶

func MercuryApparentLoBo(jd float64) (float64, float64)

func MercuryApparentLoBoN ¶

func MercuryApparentLoBoN(jd float64, n int) (float64, float64)

MercuryApparentLoBoN 水星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Mercury.

func MercuryApparentLoN ¶

func MercuryApparentLoN(jd float64, n int) float64

MercuryApparentLoN 水星视黄经（截断版） / truncated apparent ecliptic longitude of Mercury.

func MercuryApparentRa ¶

func MercuryApparentRa(jd float64) float64

func MercuryApparentRaDec ¶

func MercuryApparentRaDec(jd float64) (float64, float64)

func MercuryApparentRaDecN ¶

func MercuryApparentRaDecN(jd float64, n int) (float64, float64)

MercuryApparentRaDecN 水星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Mercury.

func MercuryApparentRaN ¶

func MercuryApparentRaN(jd float64, n int) float64

MercuryApparentRaN 水星视赤经（截断版） / truncated apparent right ascension of Mercury.

func MercuryAscendingNode ¶

func MercuryAscendingNode(jd float64) float64

MercuryAscendingNode 水星升交点黄经 / ascending node longitude of Mercury.

func MercuryAscendingNodeN ¶

func MercuryAscendingNodeN(jd float64, n int) float64

MercuryAscendingNodeN 水星升交点黄经（截断版） / truncated ascending node longitude of Mercury.

func MercuryAzimuth ¶

func MercuryAzimuth(jde, lon, lat, timezone float64) float64

func MercuryAzimuthN ¶

func MercuryAzimuthN(jde, lon, lat, timezone float64, n int) float64

MercuryAzimuthN 水星方位角（截断版） / truncated azimuth of Mercury.

func MercuryB ¶

func MercuryB(jd float64) float64

func MercuryBrightLimbPositionAngle ¶

func MercuryBrightLimbPositionAngle(jd float64) float64

MercuryBrightLimbPositionAngle 水星亮面中心位置角 / position angle of Mercury bright limb.

func MercuryBrightLimbPositionAngleN ¶

func MercuryBrightLimbPositionAngleN(jd float64, n int) float64

MercuryBrightLimbPositionAngleN 水星亮面中心位置角（截断版） / truncated position angle of Mercury bright limb.

func MercuryCulminationTime ¶

func MercuryCulminationTime(jde, lon, timezone float64) float64

func MercuryCulminationTimeN ¶

func MercuryCulminationTimeN(jde, lon, timezone float64, n int) float64

MercuryCulminationTimeN 水星中天时间（截断版） / truncated culmination time of Mercury.

func MercuryDescendingNode ¶

func MercuryDescendingNode(jd float64) float64

MercuryDescendingNode 水星降交点黄经 / descending node longitude of Mercury.

func MercuryDescendingNodeN ¶

func MercuryDescendingNodeN(jd float64, n int) float64

MercuryDescendingNodeN 水星降交点黄经（截断版） / truncated descending node longitude of Mercury.

func MercuryDiameter ¶

func MercuryDiameter(jd float64) float64

MercuryDiameter 水星视直径，单位角秒 / apparent Mercury diameter in arcseconds.

func MercuryDiameterN ¶

func MercuryDiameterN(jd float64, n int) float64

MercuryDiameterN 水星视直径（截断版），单位角秒 / truncated apparent Mercury diameter in arcseconds.

func MercuryHeight ¶

func MercuryHeight(jde, lon, lat, timezone float64) float64

func MercuryHeightN ¶

func MercuryHeightN(jde, lon, lat, timezone float64, n int) float64

MercuryHeightN 水星高度角（截断版） / truncated altitude of Mercury.

func MercuryHourAngle ¶

func MercuryHourAngle(jd, lon, timezone float64) float64

func MercuryHourAngleN ¶

func MercuryHourAngleN(jd, lon, timezone float64, n int) float64

MercuryHourAngleN 水星时角（截断版） / truncated hour angle of Mercury.

func MercuryIlluminatedFraction ¶

func MercuryIlluminatedFraction(jd float64) float64

MercuryIlluminatedFraction 水星被照亮比例 / illuminated fraction of Mercury.

func MercuryIlluminatedFractionN ¶

func MercuryIlluminatedFractionN(jd float64, n int) float64

MercuryIlluminatedFractionN 水星被照亮比例（截断版） / truncated illuminated fraction of Mercury.

func MercuryL ¶

func MercuryL(jd float64) float64

func MercuryMag ¶

func MercuryMag(jd float64) float64

func MercuryMagN ¶

func MercuryMagN(jd float64, n int) float64

MercuryMagN 水星视星等（截断版） / truncated apparent magnitude of Mercury.

func MercuryPhaseAngle ¶

func MercuryPhaseAngle(jd float64) float64

MercuryPhaseAngle 水星相位角 / phase angle of Mercury.

func MercuryPhaseAngleN ¶

func MercuryPhaseAngleN(jd float64, n int) float64

MercuryPhaseAngleN 水星相位角（截断版） / truncated phase angle of Mercury.

func MercuryR ¶

func MercuryR(jd float64) float64

func MercuryRiseTime ¶

func MercuryRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func MercuryRiseTimeN ¶

func MercuryRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

MercuryRiseTimeN 水星升起时间（截断版） / truncated rise time of Mercury.

func MercurySemidiameter ¶

func MercurySemidiameter(jd float64) float64

MercurySemidiameter 水星视半径，单位角秒 / apparent Mercury semidiameter in arcseconds.

func MercurySemidiameterN ¶

func MercurySemidiameterN(jd float64, n int) float64

MercurySemidiameterN 水星视半径（截断版），单位角秒 / truncated apparent Mercury semidiameter in arcseconds.

func MercurySetTime ¶

func MercurySetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func MercurySetTimeN ¶

func MercurySetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

MercurySetTimeN 水星落下时间（截断版） / truncated set time of Mercury.

func MercurySunElongation ¶

func MercurySunElongation(jde float64) float64

func MoonApparentDec ¶

func MoonApparentDec(jd, lon, lat, tz float64) float64

func MoonApparentLo ¶

func MoonApparentLo(jd float64) float64

* @name 月球视黄经

func MoonApparentRa ¶

func MoonApparentRa(jd, lon, lat float64, tz int) float64

*

*
传入世界时

func MoonAscendingNode ¶

func MoonAscendingNode(jd float64) float64

MoonAscendingNode 月球升交点黄经 / ascending node longitude of the Moon.

func MoonAscendingNodeN ¶

func MoonAscendingNodeN(jd float64, n int) float64

MoonAscendingNodeN 月球升交点黄经（截断版） / truncated ascending node longitude of the Moon.

func MoonAway ¶

func MoonAway(jd float64) float64

func MoonAzimuth ¶

func MoonAzimuth(jd, lon, lat, tz float64) float64

* 月球方位角

func MoonB ¶

func MoonB(jd float64) float64

func MoonBrightLimbPositionAngle ¶

func MoonBrightLimbPositionAngle(jd float64) float64

MoonBrightLimbPositionAngle 月亮明亮边缘位置角 / position angle of the Moon's bright limb.

func MoonBrightLimbPositionAngleN ¶

func MoonBrightLimbPositionAngleN(jd float64, n int) float64

MoonBrightLimbPositionAngleN 月亮明亮边缘位置角（截断版） / truncated position angle of the Moon's bright limb.

func MoonCalcNew ¶

func MoonCalcNew(coordIndex int, jd float64) float64

func MoonCalcNewN ¶

func MoonCalcNewN(coordIndex int, jd float64, n int) float64

func MoonCulminationTime ¶

func MoonCulminationTime(jde, lon, lat, timezone float64) float64

func MoonDescendingNode ¶

func MoonDescendingNode(jd float64) float64

MoonDescendingNode 月球降交点黄经 / descending node longitude of the Moon.

func MoonDescendingNodeN ¶

func MoonDescendingNodeN(jd float64, n int) float64

MoonDescendingNodeN 月球降交点黄经（截断版） / truncated descending node longitude of the Moon.

func MoonDiameter ¶

func MoonDiameter(jd float64) float64

MoonDiameter 月亮视直径，单位角秒 / apparent lunar diameter in arcseconds.

func MoonDiameterN ¶

func MoonDiameterN(jd float64, n int) float64

MoonDiameterN 月亮视直径（截断版），单位角秒 / truncated apparent lunar diameter in arcseconds.

func MoonHeight ¶

func MoonHeight(jd, lon, lat, tz float64) float64

func MoonI ¶

func MoonI(jd float64) float64

func MoonLo ¶

func MoonLo(jd float64) float64

func MoonLonX ¶

func MoonLonX(jd float64) float64

func MoonM ¶

func MoonM(jd float64) float64

func MoonPhase ¶

func MoonPhase(jd float64) float64

func MoonR ¶

func MoonR(jd float64) float64

func MoonSemidiameter ¶

func MoonSemidiameter(jd float64) float64

MoonSemidiameter 月亮视半径，单位角秒 / apparent lunar semidiameter in arcseconds.

func MoonSemidiameterN ¶

func MoonSemidiameterN(jd float64, n int) float64

MoonSemidiameterN 月亮视半径（截断版），单位角秒 / truncated apparent lunar semidiameter in arcseconds.

func MoonTimeAngle ¶

func MoonTimeAngle(jd, lon, lat, tz float64) float64

func MoonTopocentricBrightLimbPositionAngle ¶

func MoonTopocentricBrightLimbPositionAngle(jd, observerLon, observerLat, height float64) float64

MoonTopocentricBrightLimbPositionAngle 月亮站心明亮边缘位置角 / topocentric position angle of the Moon's bright limb.

func MoonTopocentricBrightLimbPositionAngleN ¶

func MoonTopocentricBrightLimbPositionAngleN(jd, observerLon, observerLat, height float64, n int) float64

MoonTopocentricBrightLimbPositionAngleN 月亮站心明亮边缘位置角（截断版） / truncated topocentric position angle of the Moon's bright limb.

func MoonTrueBo ¶

func MoonTrueBo(jd float64) float64

func MoonTrueDec ¶

func MoonTrueDec(jd float64) float64

* 月球真赤纬

func MoonTrueLo ¶

func MoonTrueLo(jd float64) float64

func MoonTrueRa ¶

func MoonTrueRa(jd float64) float64

* 月球真赤经

func MoonTrueRaDec ¶

func MoonTrueRaDec(jd float64) (float64, float64)

func MorningTwilight ¶

func MorningTwilight(jd, lon, lat, tz, targetAltitude float64) (float64, error)

func MorningTwilightN ¶

func MorningTwilightN(jd, lon, lat, tz, targetAltitude float64, n int) (float64, error)

func NeptuneApparentBo ¶

func NeptuneApparentBo(jd float64) float64

func NeptuneApparentBoN ¶

func NeptuneApparentBoN(jd float64, n int) float64

NeptuneApparentBoN 海王星视黄纬（截断版） / truncated apparent ecliptic latitude of Neptune.

func NeptuneApparentDec ¶

func NeptuneApparentDec(jd float64) float64

func NeptuneApparentDecN ¶

func NeptuneApparentDecN(jd float64, n int) float64

NeptuneApparentDecN 海王星视赤纬（截断版） / truncated apparent declination of Neptune.

func NeptuneApparentLo ¶

func NeptuneApparentLo(jd float64) float64

func NeptuneApparentLoBo ¶

func NeptuneApparentLoBo(jd float64) (float64, float64)

func NeptuneApparentLoBoN ¶

func NeptuneApparentLoBoN(jd float64, n int) (float64, float64)

NeptuneApparentLoBoN 海王星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Neptune.

func NeptuneApparentLoN ¶

func NeptuneApparentLoN(jd float64, n int) float64

NeptuneApparentLoN 海王星视黄经（截断版） / truncated apparent ecliptic longitude of Neptune.

func NeptuneApparentRa ¶

func NeptuneApparentRa(jd float64) float64

func NeptuneApparentRaDec ¶

func NeptuneApparentRaDec(jd float64) (float64, float64)

func NeptuneApparentRaDecN ¶

func NeptuneApparentRaDecN(jd float64, n int) (float64, float64)

NeptuneApparentRaDecN 海王星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Neptune.

func NeptuneApparentRaN ¶

func NeptuneApparentRaN(jd float64, n int) float64

NeptuneApparentRaN 海王星视赤经（截断版） / truncated apparent right ascension of Neptune.

func NeptuneAscendingNode ¶

func NeptuneAscendingNode(jd float64) float64

NeptuneAscendingNode 海王星升交点黄经 / ascending node longitude of Neptune.

func NeptuneAscendingNodeN ¶

func NeptuneAscendingNodeN(jd float64, n int) float64

NeptuneAscendingNodeN 海王星升交点黄经（截断版） / truncated ascending node longitude of Neptune.

func NeptuneAzimuth ¶

func NeptuneAzimuth(jde, lon, lat, timezone float64) float64

func NeptuneAzimuthN ¶

func NeptuneAzimuthN(jde, lon, lat, timezone float64, n int) float64

NeptuneAzimuthN 海王星方位角（截断版） / truncated azimuth of Neptune.

func NeptuneB ¶

func NeptuneB(jd float64) float64

func NeptuneBrightLimbPositionAngle ¶

func NeptuneBrightLimbPositionAngle(jd float64) float64

NeptuneBrightLimbPositionAngle 海王星亮面中心位置角 / position angle of Neptune bright limb.

func NeptuneBrightLimbPositionAngleN ¶

func NeptuneBrightLimbPositionAngleN(jd float64, n int) float64

NeptuneBrightLimbPositionAngleN 海王星亮面中心位置角（截断版） / truncated position angle of Neptune bright limb.

func NeptuneCulminationTime ¶

func NeptuneCulminationTime(jde, lon, timezone float64) float64

func NeptuneCulminationTimeN ¶

func NeptuneCulminationTimeN(jde, lon, timezone float64, n int) float64

NeptuneCulminationTimeN 海王星中天时间（截断版） / truncated culmination time of Neptune.

func NeptuneDescendingNode ¶

func NeptuneDescendingNode(jd float64) float64

NeptuneDescendingNode 海王星降交点黄经 / descending node longitude of Neptune.

func NeptuneDescendingNodeN ¶

func NeptuneDescendingNodeN(jd float64, n int) float64

NeptuneDescendingNodeN 海王星降交点黄经（截断版） / truncated descending node longitude of Neptune.

func NeptuneDiameter ¶

func NeptuneDiameter(jd float64) float64

NeptuneDiameter 海王星视直径，单位角秒 / apparent Neptune diameter in arcseconds.

func NeptuneDiameterN ¶

func NeptuneDiameterN(jd float64, n int) float64

NeptuneDiameterN 海王星视直径（截断版），单位角秒 / truncated apparent Neptune diameter in arcseconds.

func NeptuneHeight ¶

func NeptuneHeight(jde, lon, lat, timezone float64) float64

func NeptuneHeightN ¶

func NeptuneHeightN(jde, lon, lat, timezone float64, n int) float64

NeptuneHeightN 海王星高度角（截断版） / truncated altitude of Neptune.

func NeptuneHourAngle ¶

func NeptuneHourAngle(jd, lon, timezone float64) float64

func NeptuneHourAngleN ¶

func NeptuneHourAngleN(jd, lon, timezone float64, n int) float64

NeptuneHourAngleN 海王星时角（截断版） / truncated hour angle of Neptune.

func NeptuneIlluminatedFraction ¶

func NeptuneIlluminatedFraction(jd float64) float64

NeptuneIlluminatedFraction 海王星被照亮比例 / illuminated fraction of Neptune.

func NeptuneIlluminatedFractionN ¶

func NeptuneIlluminatedFractionN(jd float64, n int) float64

NeptuneIlluminatedFractionN 海王星被照亮比例（截断版） / truncated illuminated fraction of Neptune.

func NeptuneL ¶

func NeptuneL(jd float64) float64

func NeptuneMag ¶

func NeptuneMag(jd float64) float64

func NeptuneMagN ¶

func NeptuneMagN(jd float64, n int) float64

NeptuneMagN 海王星视星等（截断版） / truncated apparent magnitude of Neptune.

func NeptunePhaseAngle ¶

func NeptunePhaseAngle(jd float64) float64

NeptunePhaseAngle 海王星相位角 / phase angle of Neptune.

func NeptunePhaseAngleN ¶

func NeptunePhaseAngleN(jd float64, n int) float64

NeptunePhaseAngleN 海王星相位角（截断版） / truncated phase angle of Neptune.

func NeptuneR ¶

func NeptuneR(jd float64) float64

func NeptuneRiseTime ¶

func NeptuneRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func NeptuneRiseTimeN ¶

func NeptuneRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

NeptuneRiseTimeN 海王星升起时间（截断版） / truncated rise time of Neptune.

func NeptuneSemidiameter ¶

func NeptuneSemidiameter(jd float64) float64

NeptuneSemidiameter 海王星视半径，单位角秒 / apparent Neptune semidiameter in arcseconds.

func NeptuneSemidiameterN ¶

func NeptuneSemidiameterN(jd float64, n int) float64

NeptuneSemidiameterN 海王星视半径（截断版），单位角秒 / truncated apparent Neptune semidiameter in arcseconds.

func NeptuneSetTime ¶

func NeptuneSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func NeptuneSetTimeN ¶

func NeptuneSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

NeptuneSetTimeN 海王星落下时间（截断版） / truncated set time of Neptune.

func NextJupiterConjunction ¶

func NextJupiterConjunction(jde float64) float64

func NextJupiterEasternQuadrature ¶

func NextJupiterEasternQuadrature(jde float64) float64

func NextJupiterOpposition ¶

func NextJupiterOpposition(jde float64) float64

func NextJupiterProgradeToRetrograde ¶

func NextJupiterProgradeToRetrograde(jde float64) float64

func NextJupiterRetrogradeToPrograde ¶

func NextJupiterRetrogradeToPrograde(jde float64) float64

func NextJupiterWesternQuadrature ¶

func NextJupiterWesternQuadrature(jde float64) float64

func NextMarsConjunction ¶

func NextMarsConjunction(jde float64) float64

func NextMarsEasternQuadrature ¶

func NextMarsEasternQuadrature(jde float64) float64

func NextMarsOpposition ¶

func NextMarsOpposition(jde float64) float64

func NextMarsProgradeToRetrograde ¶

func NextMarsProgradeToRetrograde(jde float64) float64

func NextMarsRetrogradeToPrograde ¶

func NextMarsRetrogradeToPrograde(jde float64) float64

func NextMarsWesternQuadrature ¶

func NextMarsWesternQuadrature(jde float64) float64

func NextMercuryConjunction ¶

func NextMercuryConjunction(jde float64) float64

func NextMercuryConjunctionStrict ¶ added in v0.1.3

func NextMercuryConjunctionStrict(jde float64) float64

func NextMercuryGreatestElongation ¶

func NextMercuryGreatestElongation(jde float64) float64

func NextMercuryGreatestElongationEast ¶

func NextMercuryGreatestElongationEast(jde float64) float64

func NextMercuryGreatestElongationEastInclusive ¶ added in v0.1.3

func NextMercuryGreatestElongationEastInclusive(jde float64) float64

func NextMercuryGreatestElongationInclusive ¶ added in v0.1.3

func NextMercuryGreatestElongationInclusive(jde float64) float64

func NextMercuryGreatestElongationWest ¶

func NextMercuryGreatestElongationWest(jde float64) float64

func NextMercuryGreatestElongationWestInclusive ¶ added in v0.1.3

func NextMercuryGreatestElongationWestInclusive(jde float64) float64

func NextMercuryInferiorConjunction ¶

func NextMercuryInferiorConjunction(jde float64) float64

func NextMercuryInferiorConjunctionInclusive ¶ added in v0.1.3

func NextMercuryInferiorConjunctionInclusive(jde float64) float64

func NextMercuryProgradeToRetrograde ¶

func NextMercuryProgradeToRetrograde(jde float64) float64

func NextMercuryProgradeToRetrogradeInclusive ¶ added in v0.1.3

func NextMercuryProgradeToRetrogradeInclusive(jde float64) float64

func NextMercuryRetrograde ¶

func NextMercuryRetrograde(jde float64) float64

func NextMercuryRetrogradeInclusive ¶ added in v0.1.3

func NextMercuryRetrogradeInclusive(jde float64) float64

func NextMercuryRetrogradeStrict ¶ added in v0.1.3

func NextMercuryRetrogradeStrict(jde float64) float64

func NextMercuryRetrogradeToPrograde ¶

func NextMercuryRetrogradeToPrograde(jde float64) float64

func NextMercuryRetrogradeToProgradeInclusive ¶ added in v0.1.3

func NextMercuryRetrogradeToProgradeInclusive(jde float64) float64

func NextMercurySuperiorConjunction ¶

func NextMercurySuperiorConjunction(jde float64) float64

func NextMercurySuperiorConjunctionInclusive ¶ added in v0.1.3

func NextMercurySuperiorConjunctionInclusive(jde float64) float64

func NextMoonPlanetConjunction ¶ added in v0.1.4

func NextMoonPlanetConjunction(jde float64, planet MoonPlanetConjunctionPlanet) float64

NextMoonPlanetConjunction 指定时刻之后最近一次行星合月（赤经合） / next Moon-planet conjunction at or after jde.

func NextNeptuneConjunction ¶

func NextNeptuneConjunction(jde float64) float64

func NextNeptuneEasternQuadrature ¶

func NextNeptuneEasternQuadrature(jde float64) float64

func NextNeptuneOpposition ¶

func NextNeptuneOpposition(jde float64) float64

func NextNeptuneProgradeToRetrograde ¶

func NextNeptuneProgradeToRetrograde(jde float64) float64

func NextNeptuneRetrogradeToPrograde ¶

func NextNeptuneRetrogradeToPrograde(jde float64) float64

func NextNeptuneWesternQuadrature ¶

func NextNeptuneWesternQuadrature(jde float64) float64

func NextSaturnConjunction ¶

func NextSaturnConjunction(jde float64) float64

func NextSaturnEasternQuadrature ¶

func NextSaturnEasternQuadrature(jde float64) float64

func NextSaturnOpposition ¶

func NextSaturnOpposition(jde float64) float64

func NextSaturnProgradeToRetrograde ¶

func NextSaturnProgradeToRetrograde(jde float64) float64

func NextSaturnRetrogradeToPrograde ¶

func NextSaturnRetrogradeToPrograde(jde float64) float64

func NextSaturnWesternQuadrature ¶

func NextSaturnWesternQuadrature(jde float64) float64

func NextUranusConjunction ¶

func NextUranusConjunction(jde float64) float64

func NextUranusEasternQuadrature ¶

func NextUranusEasternQuadrature(jde float64) float64

func NextUranusOpposition ¶

func NextUranusOpposition(jde float64) float64

func NextUranusProgradeToRetrograde ¶

func NextUranusProgradeToRetrograde(jde float64) float64

func NextUranusRetrogradeToPrograde ¶

func NextUranusRetrogradeToPrograde(jde float64) float64

func NextUranusWesternQuadrature ¶

func NextUranusWesternQuadrature(jde float64) float64

func NextVenusConjunction ¶

func NextVenusConjunction(jde float64) float64

func NextVenusConjunctionStrict ¶ added in v0.1.3

func NextVenusConjunctionStrict(jde float64) float64

func NextVenusGreatestElongation ¶

func NextVenusGreatestElongation(jde float64) float64

func NextVenusGreatestElongationEast ¶

func NextVenusGreatestElongationEast(jde float64) float64

func NextVenusGreatestElongationEastInclusive ¶ added in v0.1.3

func NextVenusGreatestElongationEastInclusive(jde float64) float64

func NextVenusGreatestElongationInclusive ¶ added in v0.1.3

func NextVenusGreatestElongationInclusive(jde float64) float64

func NextVenusGreatestElongationWest ¶

func NextVenusGreatestElongationWest(jde float64) float64

func NextVenusGreatestElongationWestInclusive ¶ added in v0.1.3

func NextVenusGreatestElongationWestInclusive(jde float64) float64

func NextVenusInferiorConjunction ¶

func NextVenusInferiorConjunction(jde float64) float64

func NextVenusInferiorConjunctionInclusive ¶ added in v0.1.3

func NextVenusInferiorConjunctionInclusive(jde float64) float64

func NextVenusProgradeToRetrograde ¶

func NextVenusProgradeToRetrograde(jde float64) float64

func NextVenusProgradeToRetrogradeInclusive ¶ added in v0.1.3

func NextVenusProgradeToRetrogradeInclusive(jde float64) float64

func NextVenusRetrograde ¶

func NextVenusRetrograde(jde float64) float64

func NextVenusRetrogradeInclusive ¶ added in v0.1.3

func NextVenusRetrogradeInclusive(jde float64) float64

func NextVenusRetrogradeToPrograde ¶

func NextVenusRetrogradeToPrograde(jde float64) float64

func NextVenusRetrogradeToProgradeInclusive ¶ added in v0.1.3

func NextVenusRetrogradeToProgradeInclusive(jde float64) float64

func NextVenusSuperiorConjunction ¶

func NextVenusSuperiorConjunction(jde float64) float64

func NextVenusSuperiorConjunctionInclusive ¶ added in v0.1.3

func NextVenusSuperiorConjunctionInclusive(jde float64) float64

func Nutation1980 ¶

func Nutation1980(jd float64) (float64, float64)

Nutation1980 计算 IAU 1980 章动模型返回黄经章动 (dpsi) 和交角章动 (deps)，单位为度

func Nutation1980i ¶

func Nutation1980i(jd float64) float64

黄经章动 1980

func Nutation1980s ¶

func Nutation1980s(jd float64) float64

交角章动1980

func Nutation2000B ¶

func Nutation2000B(jd float64) (float64, float64)

Nutation2000B 计算 IAU 2000B 章动模型返回交角章动 (de) 和黄经章动 (dp)，单位为度

func Nutation2000Bi ¶

func Nutation2000Bi(jd float64) float64

黄经章动 2000B

func Nutation2000Bs ¶

func Nutation2000Bs(jd float64) float64

交角章动2000B

func Obliquity1980 ¶

func Obliquity1980(jd float64) float64

Obliquity1980 计算黄赤交角，单位为度公式 3.222-1

func OrbitApparentGeocentricEcliptic ¶

func OrbitApparentGeocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64)

OrbitApparentGeocentricEcliptic 返回光行时与章动修正后的地心视黄道坐标，单位度/AU。

func OrbitApparentGeocentricEquatorial ¶

func OrbitApparentGeocentricEquatorial(jd float64, elements OrbitElements) (ra, dec, distance float64)

OrbitApparentGeocentricEquatorial 返回光行时与章动修正后的地心视赤道坐标，单位度/AU。

func OrbitApparentTopocentricEquatorial ¶

func OrbitApparentTopocentricEquatorial(jd, observerLon, observerLat, observerHeight float64, elements OrbitElements) (ra, dec, distance float64)

OrbitApparentTopocentricEquatorial 返回光行时、章动与站心修正后的视赤道坐标，单位度/AU。

func OrbitAsteroidMagnitudeHG ¶

func OrbitAsteroidMagnitudeHG(jd float64, elements OrbitElements, absoluteMagnitude, slopeParameter float64) float64

OrbitAsteroidMagnitudeHG 返回小行星 H-G 模型的视星等。

func OrbitAstrometricGeocentricEquatorialJ2000 ¶

func OrbitAstrometricGeocentricEquatorialJ2000(jd float64, elements OrbitElements) (ra, dec, distance float64)

OrbitAstrometricGeocentricEquatorialJ2000 返回光行时修正后的地心 J2000 赤道坐标，单位度/AU。

func OrbitAzimuth ¶

func OrbitAzimuth(jde, observerLon, observerLat, timezone, observerHeight float64, elements OrbitElements) float64

OrbitAzimuth 返回轨道目标在观测者所在地的视方位角，按正北为 0°、向东增加。

func OrbitCulminationTime ¶

func OrbitCulminationTime(jde, observerLon, observerLat, timezone, observerHeight float64, elements OrbitElements) float64

OrbitCulminationTime 返回轨道目标的中天时刻，输入输出均沿用本仓库现有观测函数的 JD 语义。

func OrbitEarthDistance ¶

func OrbitEarthDistance(jd float64, elements OrbitElements) float64

OrbitEarthDistance 返回轨道目标在给定 TT/TDB 儒略日的地心距离，单位 AU。

func OrbitEccentricAnomaly ¶

func OrbitEccentricAnomaly(jd float64, elements OrbitElements) float64

OrbitEccentricAnomaly 返回给定 TT/TDB 儒略日的偏近点角，单位度。仅适用于椭圆轨道；对抛物/双曲轨道返回 NaN。

func OrbitElongation ¶

func OrbitElongation(jd float64, elements OrbitElements) float64

OrbitElongation 返回轨道目标相对于太阳的地心视角距，单位度。

func OrbitGeocentricEcliptic ¶

func OrbitGeocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64)

OrbitGeocentricEcliptic 返回地心历元黄道球坐标，单位度/AU。

func OrbitGeocentricEclipticJ2000 ¶

func OrbitGeocentricEclipticJ2000(jd float64, elements OrbitElements) (lon, lat, distance float64)

OrbitGeocentricEclipticJ2000 返回地心 J2000 平黄道球坐标，单位度/AU。

func OrbitGeocentricEquatorial ¶

func OrbitGeocentricEquatorial(jd float64, elements OrbitElements) (ra, dec, distance float64)

OrbitGeocentricEquatorial 返回地心历元平赤道球坐标，单位度/AU。

func OrbitGeocentricEquatorialJ2000 ¶

func OrbitGeocentricEquatorialJ2000(jd float64, elements OrbitElements) (ra, dec, distance float64)

OrbitGeocentricEquatorialJ2000 返回地心 J2000 平赤道球坐标，单位度/AU。

func OrbitHeight ¶

func OrbitHeight(jde, observerLon, observerLat, timezone, observerHeight float64, elements OrbitElements) float64

OrbitHeight 返回轨道目标在观测者所在地的视高度角，单位度。

func OrbitHeliocentricEcliptic ¶

func OrbitHeliocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64)

OrbitHeliocentricEcliptic 返回日心历元黄道球坐标，单位度/AU。

func OrbitHeliocentricEclipticJ2000 ¶

func OrbitHeliocentricEclipticJ2000(jd float64, elements OrbitElements) (lon, lat, distance float64)

OrbitHeliocentricEclipticJ2000 返回日心 J2000 平黄道球坐标，单位度/AU。

func OrbitHourAngle ¶

func OrbitHourAngle(jde, observerLon, observerLat, timezone, observerHeight float64, elements OrbitElements) float64

OrbitHourAngle 返回轨道目标的站心视时角，单位度。

func OrbitIlluminatedFraction ¶

func OrbitIlluminatedFraction(jd float64, elements OrbitElements) float64

OrbitIlluminatedFraction 返回轨道目标的被照亮比例。

func OrbitMeanAnomaly ¶

func OrbitMeanAnomaly(jd float64, elements OrbitElements) float64

OrbitMeanAnomaly 返回给定 TT/TDB 儒略日的平近点角，单位度。对抛物/双曲轨道返回 NaN。

func OrbitMeanMotion ¶

func OrbitMeanMotion(elements OrbitElements) float64

OrbitMeanMotion 返回历元平均角速度，单位度/日。对近日点形式的抛物/双曲轨道返回 NaN。

func OrbitPhaseAngle ¶

func OrbitPhaseAngle(jd float64, elements OrbitElements) float64

OrbitPhaseAngle 返回轨道目标的相位角，单位度。

func OrbitRiseTime ¶

func OrbitRiseTime(jde, observerLon, observerLat, timezone, aeroCorrection, observerHeight float64, elements OrbitElements) (float64, error)

OrbitRiseTime 返回轨道目标在给定当地日期的升起时刻。

func OrbitSetTime ¶

func OrbitSetTime(jde, observerLon, observerLat, timezone, aeroCorrection, observerHeight float64, elements OrbitElements) (float64, error)

OrbitSetTime 返回轨道目标在给定当地日期的落下时刻。

func OrbitSunDistance ¶

func OrbitSunDistance(jd float64, elements OrbitElements) float64

OrbitSunDistance 返回轨道目标在给定 TT/TDB 儒略日的日心距离，单位 AU。

func OrbitTrueAnomaly ¶

func OrbitTrueAnomaly(jd float64, elements OrbitElements) float64

OrbitTrueAnomaly 返回给定 TT/TDB 儒略日的真近点角，单位度。

func ParallacticAngleByHourAngle ¶

func ParallacticAngleByHourAngle(hourAngle, dec, lat float64) float64

ParallacticAngleByHourAngle 返回视差角（天顶方向角）/ parallactic angle.

hourAngle 为目标时角，dec 为赤纬，lat 为观测者纬度，单位均为度。返回值是 atan2 公式给出的有符号结果，范围通常为 [-180, 180] 度。 hourAngle may be signed or normalized to [0, 360); the trigonometric formula handles either representation.

func Precess ¶

func Precess(ra, dec, jdFrom, jdTo float64) (float64, float64)

应用长期岁差转换

func PrecessIAU1976 ¶

func PrecessIAU1976(ra0, dec0, startJD, targetJD float64) (float64, float64)

Precess 函数实现了基于 Explanatory Supplement 2nd ed. table 3.211.1 的岁差计算 ra0, dec0: 初始赤经和赤纬（弧度） startJD: 初始儒略日 targetJD: 目标儒略日返回: 目标历元的赤经和赤纬（弧度）

func RaDecToLoBo ¶

func RaDecToLoBo(jde, ra, dec float64) (float64, float64)

func RaToLo ¶

func RaToLo(jde, ra, dec float64) float64

func RefractionFromApparentAltitude ¶

func RefractionFromApparentAltitude(apparentAltitude, pressureHPa, temperatureC float64) float64

RefractionFromApparentAltitude 大气折射修正量，单位度；输入为视高度角。返回值应从视高度角减去后得到真高度角。若模型在支持的真高度范围内没有逆解，则返回 NaN。

func RefractionFromTrueAltitude ¶

func RefractionFromTrueAltitude(trueAltitude, pressureHPa, temperatureC float64) float64

RefractionFromTrueAltitude 大气折射修正量，单位度；输入为真高度角。返回值应从真高度角加上后得到视高度角。

func SaturnApparentBo ¶

func SaturnApparentBo(jd float64) float64

func SaturnApparentBoN ¶

func SaturnApparentBoN(jd float64, n int) float64

SaturnApparentBoN 土星视黄纬（截断版） / truncated apparent ecliptic latitude of Saturn.

func SaturnApparentDec ¶

func SaturnApparentDec(jd float64) float64

func SaturnApparentDecN ¶

func SaturnApparentDecN(jd float64, n int) float64

SaturnApparentDecN 土星视赤纬（截断版） / truncated apparent declination of Saturn.

func SaturnApparentLo ¶

func SaturnApparentLo(jd float64) float64

func SaturnApparentLoBo ¶

func SaturnApparentLoBo(jd float64) (float64, float64)

func SaturnApparentLoBoN ¶

func SaturnApparentLoBoN(jd float64, n int) (float64, float64)

SaturnApparentLoBoN 土星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Saturn.

func SaturnApparentLoN ¶

func SaturnApparentLoN(jd float64, n int) float64

SaturnApparentLoN 土星视黄经（截断版） / truncated apparent ecliptic longitude of Saturn.

func SaturnApparentRa ¶

func SaturnApparentRa(jd float64) float64

func SaturnApparentRaDec ¶

func SaturnApparentRaDec(jd float64) (float64, float64)

func SaturnApparentRaDecN ¶

func SaturnApparentRaDecN(jd float64, n int) (float64, float64)

SaturnApparentRaDecN 土星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Saturn.

func SaturnApparentRaN ¶

func SaturnApparentRaN(jd float64, n int) float64

SaturnApparentRaN 土星视赤经（截断版） / truncated apparent right ascension of Saturn.

func SaturnAscendingNode ¶

func SaturnAscendingNode(jd float64) float64

SaturnAscendingNode 土星升交点黄经 / ascending node longitude of Saturn.

func SaturnAscendingNodeN ¶

func SaturnAscendingNodeN(jd float64, n int) float64

SaturnAscendingNodeN 土星升交点黄经（截断版） / truncated ascending node longitude of Saturn.

func SaturnAzimuth ¶

func SaturnAzimuth(jde, lon, lat, timezone float64) float64

func SaturnAzimuthN ¶

func SaturnAzimuthN(jde, lon, lat, timezone float64, n int) float64

SaturnAzimuthN 土星方位角（截断版） / truncated azimuth of Saturn.

func SaturnB ¶

func SaturnB(jd float64) float64

func SaturnBrightLimbPositionAngle ¶

func SaturnBrightLimbPositionAngle(jd float64) float64

SaturnBrightLimbPositionAngle 土星亮面中心位置角 / position angle of Saturn bright limb.

func SaturnBrightLimbPositionAngleN ¶

func SaturnBrightLimbPositionAngleN(jd float64, n int) float64

SaturnBrightLimbPositionAngleN 土星亮面中心位置角（截断版） / truncated position angle of Saturn bright limb.

func SaturnCulminationTime ¶

func SaturnCulminationTime(jde, lon, timezone float64) float64

func SaturnCulminationTimeN ¶

func SaturnCulminationTimeN(jde, lon, timezone float64, n int) float64

SaturnCulminationTimeN 土星中天时间（截断版） / truncated culmination time of Saturn.

func SaturnDescendingNode ¶

func SaturnDescendingNode(jd float64) float64

SaturnDescendingNode 土星降交点黄经 / descending node longitude of Saturn.

func SaturnDescendingNodeN ¶

func SaturnDescendingNodeN(jd float64, n int) float64

SaturnDescendingNodeN 土星降交点黄经（截断版） / truncated descending node longitude of Saturn.

func SaturnDiameter ¶

func SaturnDiameter(jd float64) float64

SaturnDiameter 土星视直径，单位角秒 / apparent Saturn diameter in arcseconds.

func SaturnDiameterN ¶

func SaturnDiameterN(jd float64, n int) float64

SaturnDiameterN 土星视直径（截断版），单位角秒 / truncated apparent Saturn diameter in arcseconds.

func SaturnHeight ¶

func SaturnHeight(jde, lon, lat, timezone float64) float64

func SaturnHeightN ¶

func SaturnHeightN(jde, lon, lat, timezone float64, n int) float64

SaturnHeightN 土星高度角（截断版） / truncated altitude of Saturn.

func SaturnHourAngle ¶

func SaturnHourAngle(jd, lon, timezone float64) float64

func SaturnHourAngleN ¶

func SaturnHourAngleN(jd, lon, timezone float64, n int) float64

SaturnHourAngleN 土星时角（截断版） / truncated hour angle of Saturn.

func SaturnIlluminatedFraction ¶

func SaturnIlluminatedFraction(jd float64) float64

SaturnIlluminatedFraction 土星被照亮比例 / illuminated fraction of Saturn.

func SaturnIlluminatedFractionN ¶

func SaturnIlluminatedFractionN(jd float64, n int) float64

SaturnIlluminatedFractionN 土星被照亮比例（截断版） / truncated illuminated fraction of Saturn.

func SaturnL ¶

func SaturnL(jd float64) float64

func SaturnMag ¶

func SaturnMag(jd float64) float64

func SaturnMagN ¶

func SaturnMagN(jd float64, n int) float64

SaturnMagN 土星视星等（截断版） / truncated apparent magnitude of Saturn.

func SaturnPhaseAngle ¶

func SaturnPhaseAngle(jd float64) float64

SaturnPhaseAngle 土星相位角 / phase angle of Saturn.

func SaturnPhaseAngleN ¶

func SaturnPhaseAngleN(jd float64, n int) float64

SaturnPhaseAngleN 土星相位角（截断版） / truncated phase angle of Saturn.

func SaturnR ¶

func SaturnR(jd float64) float64

func SaturnRingAxis ¶

func SaturnRingAxis(jd float64) (majorAxis, minorAxis float64)

SaturnRingAxis 土星环外缘长短轴，单位角秒 / outer ring axes in arcseconds.

func SaturnRingAxisN ¶

func SaturnRingAxisN(jd float64, n int) (majorAxis, minorAxis float64)

SaturnRingAxisN 土星环外缘长短轴（截断版），单位角秒 / truncated outer ring axes in arcseconds.

func SaturnRingB ¶

func SaturnRingB(jd float64) float64

SaturnRingB 土星环张角 B / Saturn ring opening angle B.

func SaturnRingBN ¶

func SaturnRingBN(jd float64, n int) float64

SaturnRingBN 土星环张角 B（截断版） / truncated Saturn ring opening angle B.

func SaturnRingDeltaU ¶

func SaturnRingDeltaU(jd float64) float64

SaturnRingDeltaU 太阳和地球在环面内的土星心黄经差 / difference of Saturnicentric ring longitudes.

func SaturnRingDeltaUN ¶

func SaturnRingDeltaUN(jd float64, n int) float64

SaturnRingDeltaUN 太阳和地球在环面内的土星心黄经差（截断版） / truncated Saturnicentric ring longitude difference.

func SaturnRingParameters ¶

func SaturnRingParameters(jd float64) (earthLatitude, sunLatitude, positionAngle, deltaU, majorAxis, minorAxis float64)

SaturnRingParameters 土星环参数 / Saturn ring parameters.

func SaturnRingParametersN ¶

func SaturnRingParametersN(jd float64, n int) (earthLatitude, sunLatitude, positionAngle, deltaU, majorAxis, minorAxis float64)

SaturnRingParametersN 土星环参数（截断版） / truncated Saturn ring parameters.

func SaturnRingPositionAngle ¶

func SaturnRingPositionAngle(jd float64) float64

SaturnRingPositionAngle 土星环北半短轴位置角 / position angle of Saturn ring northern semiminor axis.

func SaturnRingPositionAngleN ¶

func SaturnRingPositionAngleN(jd float64, n int) float64

SaturnRingPositionAngleN 土星环北半短轴位置角（截断版） / truncated position angle of Saturn ring northern semiminor axis.

func SaturnRingSunB ¶

func SaturnRingSunB(jd float64) float64

SaturnRingSunB 土星环太阳侧张角 B' / Sun-side Saturn ring opening angle B'.

func SaturnRingSunBN ¶

func SaturnRingSunBN(jd float64, n int) float64

SaturnRingSunBN 土星环太阳侧张角 B'（截断版） / truncated Sun-side Saturn ring opening angle B'.

func SaturnRiseTime ¶

func SaturnRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func SaturnRiseTimeN ¶

func SaturnRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

SaturnRiseTimeN 土星升起时间（截断版） / truncated rise time of Saturn.

func SaturnSemidiameter ¶

func SaturnSemidiameter(jd float64) float64

SaturnSemidiameter 土星视半径，单位角秒 / apparent Saturn semidiameter in arcseconds.

func SaturnSemidiameterN ¶

func SaturnSemidiameterN(jd float64, n int) float64

SaturnSemidiameterN 土星视半径（截断版），单位角秒 / truncated apparent Saturn semidiameter in arcseconds.

func SaturnSetTime ¶

func SaturnSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func SaturnSetTimeN ¶

func SaturnSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

SaturnSetTimeN 土星落下时间（截断版） / truncated set time of Saturn.

func SetDeltaTFn ¶

func SetDeltaTFn(fn func(float64, bool) float64)

func StandardAltitudeMoon ¶

func StandardAltitudeMoon(zenithShift, observerHeight, lat float64) float64

func StandardAltitudePlanet ¶

func StandardAltitudePlanet(aeroCorrection, observerHeight, lat float64) float64

func StandardAltitudeStar ¶

func StandardAltitudeStar(aero bool, observerHeight, lat float64) float64

func StandardAltitudeSun ¶

func StandardAltitudeSun(zenithShift, observerHeight, lat float64) float64

func StarAngularSeparation ¶

func StarAngularSeparation(ra1, dec1, ra2, dec2 float64) float64

func StarAzimuth ¶

func StarAzimuth(jde, ra, dec, lon, lat, timezone float64) float64

StarAzimuth 星体的方位角传入 jde时间、瞬时赤经、瞬时赤纬、经度、纬度、时区，jde时间应为时区时间返回方位角，单位为度，正北为0，度数顺时针增加，取值范围[0-360)

func StarCulminationTime ¶

func StarCulminationTime(jde, ra, lon, timezone float64) float64

func StarHeight ¶

func StarHeight(jde, ra, dec, lon, lat, timezone float64) float64

StarHeight 星体的高度角传入 jde时间、瞬时赤经、瞬时赤纬、经度、纬度、时区，jde时间应为时区时间返回高度角，单位为度

func StarHourAngle ¶

func StarHourAngle(jde, ra, lon, timezone float64) float64

StarHourAngle 星体的时角传入 jde时间、瞬时赤经、瞬时赤纬、经度、时区，jde时间应为时区时间返回时角

func StarParallacticAngle ¶

func StarParallacticAngle(jde, ra, dec, lon, lat, timezone float64) float64

StarParallacticAngle 返回星体在给定观测条件下的视差角（天顶方向角）/ parallactic angle.

func StarRiseSetTime ¶

func StarRiseSetTime(jde, ra, dec, lon, lat, height, timezone float64, aero, isRise bool) (float64, error)

func StarRiseTime ¶

func StarRiseTime(jde, ra, dec, lon, lat, height, timezone float64, aero bool) (float64, error)

func StarSetTime ¶

func StarSetTime(jde, ra, dec, lon, lat, height, timezone float64, aero bool) (float64, error)

func SunApparentDec ¶

func SunApparentDec(jd float64) float64

func SunApparentLo ¶

func SunApparentLo(jd float64) float64

func SunApparentRa ¶

func SunApparentRa(jd float64) float64

func SunApparentRaDec ¶

func SunApparentRaDec(jd float64) (float64, float64)

func SunAzimuth ¶

func SunAzimuth(jd, lon, lat, tz float64) float64

func SunAzimuthN ¶

func SunAzimuthN(jd, lon, lat, tz float64, n int) float64

func SunDiameter ¶

func SunDiameter(jd float64) float64

SunDiameter 太阳视直径，单位角秒 / apparent solar diameter in arcseconds.

func SunDiameterN ¶

func SunDiameterN(jd float64, n int) float64

SunDiameterN 太阳视直径（截断版），单位角秒 / truncated apparent solar diameter in arcseconds.

func SunHeight ¶

func SunHeight(jd, lon, lat, tz float64) float64

* 太阳高度角世界时

func SunHeightN ¶

func SunHeightN(jd, lon, lat, tz float64, n int) float64

func SunLo ¶

func SunLo(jd float64) float64

SunLo 太阳几何黄经

func SunLoGXC ¶

func SunLoGXC(jd float64) float64

func SunLoGXCN ¶

func SunLoGXCN(jd float64, n int) float64

func SunM ¶

func SunM(jd float64) float64

func SunMidFun ¶

func SunMidFun(jd float64) float64

func SunMoonAngle ¶

func SunMoonAngle(jd float64) float64

func SunMoonSeek ¶

func SunMoonSeek(jde float64, degree float64) float64

func SunSC ¶

func SunSC(lo, jd float64) float64

func SunSemidiameter ¶

func SunSemidiameter(jd float64) float64

SunSemidiameter 太阳视半径，单位角秒 / apparent solar semidiameter in arcseconds.

func SunSemidiameterN ¶

func SunSemidiameterN(jd float64, n int) float64

SunSemidiameterN 太阳视半径（截断版），单位角秒 / truncated apparent solar semidiameter in arcseconds.

func SunTime ¶

func SunTime(jd float64) float64

func SunTimeAngle ¶

func SunTimeAngle(jd, lon, lat, tz float64) float64

* 太阳时角

func SunTimeAngleN ¶

func SunTimeAngleN(jd, lon, lat, tz float64, n int) float64

func SunTimeN ¶

func SunTimeN(jd float64, n int) float64

func SunTrueDec ¶

func SunTrueDec(jd float64) float64

func SunTrueLo ¶

func SunTrueLo(jd float64) float64

func SunTrueRa ¶

func SunTrueRa(jd float64) float64

func TD2UT ¶

func TD2UT(jde float64, utToTD bool) float64

func TopocentricBo ¶

func TopocentricBo(lo, bo, lat, lon, jd, au, h float64) float64

func TopocentricDec ¶

func TopocentricDec(ra, dec, lat, lon, jd, au, h float64) float64

func TopocentricLo ¶

func TopocentricLo(lo, bo, lat, lon, jd, au, h float64) float64

func TopocentricRa ¶

func TopocentricRa(ra, dec, lat, lon, jd, au, h float64) float64

func TopocentricRaDec ¶

func TopocentricRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64)

func TrueAltitude ¶

func TrueAltitude(apparentAltitude, pressureHPa, temperatureC float64) float64

TrueAltitude 真高度角，单位度；输入为视高度角。若折射模型在支持的真高度范围内没有逆解，则返回 NaN。

func TrueObliquity ¶

func TrueObliquity(JD float64) float64

func UranusApparentBo ¶

func UranusApparentBo(jd float64) float64

func UranusApparentBoN ¶

func UranusApparentBoN(jd float64, n int) float64

UranusApparentBoN 天王星视黄纬（截断版） / truncated apparent ecliptic latitude of Uranus.

func UranusApparentDec ¶

func UranusApparentDec(jd float64) float64

func UranusApparentDecN ¶

func UranusApparentDecN(jd float64, n int) float64

UranusApparentDecN 天王星视赤纬（截断版） / truncated apparent declination of Uranus.

func UranusApparentLo ¶

func UranusApparentLo(jd float64) float64

func UranusApparentLoBo ¶

func UranusApparentLoBo(jd float64) (float64, float64)

func UranusApparentLoBoN ¶

func UranusApparentLoBoN(jd float64, n int) (float64, float64)

UranusApparentLoBoN 天王星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Uranus.

func UranusApparentLoN ¶

func UranusApparentLoN(jd float64, n int) float64

UranusApparentLoN 天王星视黄经（截断版） / truncated apparent ecliptic longitude of Uranus.

func UranusApparentRa ¶

func UranusApparentRa(jd float64) float64

func UranusApparentRaDec ¶

func UranusApparentRaDec(jd float64) (float64, float64)

func UranusApparentRaDecN ¶

func UranusApparentRaDecN(jd float64, n int) (float64, float64)

UranusApparentRaDecN 天王星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Uranus.

func UranusApparentRaN ¶

func UranusApparentRaN(jd float64, n int) float64

UranusApparentRaN 天王星视赤经（截断版） / truncated apparent right ascension of Uranus.

func UranusAscendingNode ¶

func UranusAscendingNode(jd float64) float64

UranusAscendingNode 天王星升交点黄经 / ascending node longitude of Uranus.

func UranusAscendingNodeN ¶

func UranusAscendingNodeN(jd float64, n int) float64

UranusAscendingNodeN 天王星升交点黄经（截断版） / truncated ascending node longitude of Uranus.

func UranusAzimuth ¶

func UranusAzimuth(jde, lon, lat, timezone float64) float64

func UranusAzimuthN ¶

func UranusAzimuthN(jde, lon, lat, timezone float64, n int) float64

UranusAzimuthN 天王星方位角（截断版） / truncated azimuth of Uranus.

func UranusB ¶

func UranusB(jd float64) float64

func UranusBrightLimbPositionAngle ¶

func UranusBrightLimbPositionAngle(jd float64) float64

UranusBrightLimbPositionAngle 天王星亮面中心位置角 / position angle of Uranus bright limb.

func UranusBrightLimbPositionAngleN ¶

func UranusBrightLimbPositionAngleN(jd float64, n int) float64

UranusBrightLimbPositionAngleN 天王星亮面中心位置角（截断版） / truncated position angle of Uranus bright limb.

func UranusCulminationTime ¶

func UranusCulminationTime(jde, lon, timezone float64) float64

func UranusCulminationTimeN ¶

func UranusCulminationTimeN(jde, lon, timezone float64, n int) float64

UranusCulminationTimeN 天王星中天时间（截断版） / truncated culmination time of Uranus.

func UranusDescendingNode ¶

func UranusDescendingNode(jd float64) float64

UranusDescendingNode 天王星降交点黄经 / descending node longitude of Uranus.

func UranusDescendingNodeN ¶

func UranusDescendingNodeN(jd float64, n int) float64

UranusDescendingNodeN 天王星降交点黄经（截断版） / truncated descending node longitude of Uranus.

func UranusDiameter ¶

func UranusDiameter(jd float64) float64

UranusDiameter 天王星视直径，单位角秒 / apparent Uranus diameter in arcseconds.

func UranusDiameterN ¶

func UranusDiameterN(jd float64, n int) float64

UranusDiameterN 天王星视直径（截断版），单位角秒 / truncated apparent Uranus diameter in arcseconds.

func UranusHeight ¶

func UranusHeight(jde, lon, lat, timezone float64) float64

func UranusHeightN ¶

func UranusHeightN(jde, lon, lat, timezone float64, n int) float64

UranusHeightN 天王星高度角（截断版） / truncated altitude of Uranus.

func UranusHourAngle ¶

func UranusHourAngle(jd, lon, timezone float64) float64

func UranusHourAngleN ¶

func UranusHourAngleN(jd, lon, timezone float64, n int) float64

UranusHourAngleN 天王星时角（截断版） / truncated hour angle of Uranus.

func UranusIlluminatedFraction ¶

func UranusIlluminatedFraction(jd float64) float64

UranusIlluminatedFraction 天王星被照亮比例 / illuminated fraction of Uranus.

func UranusIlluminatedFractionN ¶

func UranusIlluminatedFractionN(jd float64, n int) float64

UranusIlluminatedFractionN 天王星被照亮比例（截断版） / truncated illuminated fraction of Uranus.

func UranusL ¶

func UranusL(jd float64) float64

func UranusMag ¶

func UranusMag(jd float64) float64

func UranusMagN ¶

func UranusMagN(jd float64, n int) float64

UranusMagN 天王星视星等（截断版） / truncated apparent magnitude of Uranus.

func UranusPhaseAngle ¶

func UranusPhaseAngle(jd float64) float64

UranusPhaseAngle 天王星相位角 / phase angle of Uranus.

func UranusPhaseAngleN ¶

func UranusPhaseAngleN(jd float64, n int) float64

UranusPhaseAngleN 天王星相位角（截断版） / truncated phase angle of Uranus.

func UranusR ¶

func UranusR(jd float64) float64

func UranusRiseTime ¶

func UranusRiseTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func UranusRiseTimeN ¶

func UranusRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

UranusRiseTimeN 天王星升起时间（截断版） / truncated rise time of Uranus.

func UranusSemidiameter ¶

func UranusSemidiameter(jd float64) float64

UranusSemidiameter 天王星视半径，单位角秒 / apparent Uranus semidiameter in arcseconds.

func UranusSemidiameterN ¶

func UranusSemidiameterN(jd float64, n int) float64

UranusSemidiameterN 天王星视半径（截断版），单位角秒 / truncated apparent Uranus semidiameter in arcseconds.

func UranusSetTime ¶

func UranusSetTime(jd, lon, lat, timezone, aeroCorrection, observerHeight float64) (float64, error)

func UranusSetTimeN ¶

func UranusSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

UranusSetTimeN 天王星落下时间（截断版） / truncated set time of Uranus.

func ValidateCivilDate ¶

func ValidateCivilDate(year, month int, day float64) error

func VenusApparentBo ¶

func VenusApparentBo(jd float64) float64

func VenusApparentBoN ¶

func VenusApparentBoN(jd float64, n int) float64

VenusApparentBoN 金星视黄纬（截断版） / truncated apparent ecliptic latitude of Venus.

func VenusApparentDec ¶

func VenusApparentDec(jd float64) float64

func VenusApparentDecN ¶

func VenusApparentDecN(jd float64, n int) float64

VenusApparentDecN 金星视赤纬（截断版） / truncated apparent declination of Venus.

func VenusApparentLo ¶

func VenusApparentLo(jd float64) float64

func VenusApparentLoBo ¶

func VenusApparentLoBo(jd float64) (float64, float64)

func VenusApparentLoBoN ¶

func VenusApparentLoBoN(jd float64, n int) (float64, float64)

VenusApparentLoBoN 金星视黄经黄纬（截断版） / truncated apparent ecliptic longitude and latitude of Venus.

func VenusApparentLoN ¶

func VenusApparentLoN(jd float64, n int) float64

VenusApparentLoN 金星视黄经（截断版） / truncated apparent ecliptic longitude of Venus.

func VenusApparentRa ¶

func VenusApparentRa(jd float64) float64

func VenusApparentRaDec ¶

func VenusApparentRaDec(jd float64) (float64, float64)

func VenusApparentRaDecN ¶

func VenusApparentRaDecN(jd float64, n int) (float64, float64)

VenusApparentRaDecN 金星视赤经赤纬（截断版） / truncated apparent right ascension and declination of Venus.

func VenusApparentRaN ¶

func VenusApparentRaN(jd float64, n int) float64

VenusApparentRaN 金星视赤经（截断版） / truncated apparent right ascension of Venus.

func VenusAscendingNode ¶

func VenusAscendingNode(jd float64) float64

VenusAscendingNode 金星升交点黄经 / ascending node longitude of Venus.

func VenusAscendingNodeN ¶

func VenusAscendingNodeN(jd float64, n int) float64

VenusAscendingNodeN 金星升交点黄经（截断版） / truncated ascending node longitude of Venus.

func VenusAzimuth ¶

func VenusAzimuth(jde, lon, lat, timezone float64) float64

func VenusAzimuthN ¶

func VenusAzimuthN(jde, lon, lat, timezone float64, n int) float64

VenusAzimuthN 金星方位角（截断版） / truncated azimuth of Venus.

func VenusB ¶

func VenusB(jd float64) float64

func VenusBrightLimbPositionAngle ¶

func VenusBrightLimbPositionAngle(jd float64) float64

VenusBrightLimbPositionAngle 金星亮面中心位置角 / position angle of Venus bright limb.

func VenusBrightLimbPositionAngleN ¶

func VenusBrightLimbPositionAngleN(jd float64, n int) float64

VenusBrightLimbPositionAngleN 金星亮面中心位置角（截断版） / truncated position angle of Venus bright limb.

func VenusCulminationTime ¶

func VenusCulminationTime(jde, lon, timezone float64) float64

func VenusCulminationTimeN ¶

func VenusCulminationTimeN(jde, lon, timezone float64, n int) float64

VenusCulminationTimeN 金星中天时间（截断版） / truncated culmination time of Venus.

func VenusDescendingNode ¶

func VenusDescendingNode(jd float64) float64

VenusDescendingNode 金星降交点黄经 / descending node longitude of Venus.

func VenusDescendingNodeN ¶

func VenusDescendingNodeN(jd float64, n int) float64

VenusDescendingNodeN 金星降交点黄经（截断版） / truncated descending node longitude of Venus.

func VenusDiameter ¶

func VenusDiameter(jd float64) float64

VenusDiameter 金星视直径，单位角秒 / apparent Venus diameter in arcseconds.

func VenusDiameterN ¶

func VenusDiameterN(jd float64, n int) float64

VenusDiameterN 金星视直径（截断版），单位角秒 / truncated apparent Venus diameter in arcseconds.

func VenusHeight ¶

func VenusHeight(jde, lon, lat, timezone float64) float64

func VenusHeightN ¶

func VenusHeightN(jde, lon, lat, timezone float64, n int) float64

VenusHeightN 金星高度角（截断版） / truncated altitude of Venus.

func VenusHourAngle ¶

func VenusHourAngle(jd, lon, tz float64) float64

func VenusHourAngleN ¶

func VenusHourAngleN(jd, lon, timezone float64, n int) float64

VenusHourAngleN 金星时角（截断版） / truncated hour angle of Venus.

func VenusIlluminatedFraction ¶

func VenusIlluminatedFraction(jd float64) float64

VenusIlluminatedFraction 金星被照亮比例 / illuminated fraction of Venus.

func VenusIlluminatedFractionN ¶

func VenusIlluminatedFractionN(jd float64, n int) float64

VenusIlluminatedFractionN 金星被照亮比例（截断版） / truncated illuminated fraction of Venus.

func VenusL ¶

func VenusL(jd float64) float64

func VenusMag ¶

func VenusMag(jd float64) float64

func VenusMagN ¶

func VenusMagN(jd float64, n int) float64

VenusMagN 金星视星等（截断版） / truncated apparent magnitude of Venus.

func VenusPhaseAngle ¶

func VenusPhaseAngle(jd float64) float64

VenusPhaseAngle 金星相位角 / phase angle of Venus.

func VenusPhaseAngleN ¶

func VenusPhaseAngleN(jd float64, n int) float64

VenusPhaseAngleN 金星相位角（截断版） / truncated phase angle of Venus.

func VenusR ¶

func VenusR(jd float64) float64

func VenusRiseTime ¶

func VenusRiseTime(jd, lon, lat, tz, aeroCorrection, observerHeight float64) (float64, error)

func VenusRiseTimeN ¶

func VenusRiseTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

VenusRiseTimeN 金星升起时间（截断版） / truncated rise time of Venus.

func VenusSemidiameter ¶

func VenusSemidiameter(jd float64) float64

VenusSemidiameter 金星视半径，单位角秒 / apparent Venus semidiameter in arcseconds.

func VenusSemidiameterN ¶

func VenusSemidiameterN(jd float64, n int) float64

VenusSemidiameterN 金星视半径（截断版），单位角秒 / truncated apparent Venus semidiameter in arcseconds.

func VenusSetTime ¶

func VenusSetTime(jd, lon, lat, tz, aeroCorrection, observerHeight float64) (float64, error)

func VenusSetTimeN ¶

func VenusSetTimeN(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, n int) (float64, error)

VenusSetTimeN 金星落下时间（截断版） / truncated set time of Venus.

func VenusSunElongation ¶

func VenusSunElongation(jde float64) float64

Types ¶

type ApsisEvent ¶

type ApsisEvent struct {
	// JDE 是事件发生时刻对应的世界时儒略日 / event time as UTC-based Julian day.
	JDE float64
	// Distance 是极值距离；地球相关事件单位 AU，月球相关事件单位 km / extremum distance.
	Distance float64
}

ApsisEvent 轨道极值事件 / orbital distance extremum event.

func EarthAphelion ¶

func EarthAphelion(year int) ApsisEvent

EarthAphelion 地球指定年份的远日点 / Earth aphelion in the given year.

func EarthPerihelion ¶

func EarthPerihelion(year int) ApsisEvent

EarthPerihelion 地球指定年份的近日点 / Earth perihelion in the given year.

func MoonApogees ¶

func MoonApogees(year int, month time.Month) []ApsisEvent

MoonApogees 指定年月内的所有月球远地点 / all lunar apogees in the given Gregorian month.

func MoonPerigees ¶

func MoonPerigees(year int, month time.Month) []ApsisEvent

MoonPerigees 指定年月内的所有月球近地点 / all lunar perigees in the given Gregorian month.

type CoordinateFrame ¶ added in v0.2.0

type CoordinateFrame string

CoordinateFrame 标识恒星输入坐标使用的赤道坐标系。 CoordinateFrame identifies the equatorial coordinate frame used by an input stellar coordinate.

const (
	// CoordinateFrameICRS 表示 ICRS 星表坐标系。
	// CoordinateFrameICRS is the ICRS catalog frame.
	CoordinateFrameICRS CoordinateFrame = "icrs"
	// CoordinateFrameJ2000 表示 J2000 平均赤道坐标系。
	// CoordinateFrameJ2000 is the mean equatorial J2000 frame.
	CoordinateFrameJ2000 CoordinateFrame = "j2000"
	// CoordinateFrameApparentOfDate 表示历元时刻的视赤道坐标系。
	// CoordinateFrameApparentOfDate is the apparent equatorial frame of date.
	CoordinateFrameApparentOfDate CoordinateFrame = "apparent_of_date"
)

type DeclinationEvent ¶

type DeclinationEvent struct {
	// JDE 是事件发生时刻对应的世界时儒略日 / event time as UTC-based Julian day.
	JDE float64
	// Declination 是该时刻月心地心赤纬，单位度 / geocentric lunar declination at the event, in degrees.
	Declination float64
}

DeclinationEvent 赤纬极值事件 / declination extremum event.

func ClosestMoonMaximumNorthDeclination ¶

func ClosestMoonMaximumNorthDeclination(jd float64) DeclinationEvent

ClosestMoonMaximumNorthDeclination 离指定时刻最近一次月球最大北赤纬 / closest maximum northern lunar declination to jd.

func ClosestMoonMaximumSouthDeclination ¶

func ClosestMoonMaximumSouthDeclination(jd float64) DeclinationEvent

ClosestMoonMaximumSouthDeclination 离指定时刻最近一次月球最大南赤纬 / closest maximum southern lunar declination to jd.

func LastMoonMaximumNorthDeclination ¶

func LastMoonMaximumNorthDeclination(jd float64) DeclinationEvent

LastMoonMaximumNorthDeclination 指定时刻之前最近一次月球最大北赤纬 / last maximum northern lunar declination at or before jd.

func LastMoonMaximumSouthDeclination ¶

func LastMoonMaximumSouthDeclination(jd float64) DeclinationEvent

LastMoonMaximumSouthDeclination 指定时刻之前最近一次月球最大南赤纬 / last maximum southern lunar declination at or before jd.

func MoonMaximumNorthDeclinations ¶

func MoonMaximumNorthDeclinations(year int, month time.Month) []DeclinationEvent

MoonMaximumNorthDeclinations 指定年月内的所有月球最大北赤纬事件 / all maximum northern lunar declination events in the given Gregorian month.

func MoonMaximumSouthDeclinations ¶

func MoonMaximumSouthDeclinations(year int, month time.Month) []DeclinationEvent

MoonMaximumSouthDeclinations 指定年月内的所有月球最大南赤纬事件 / all maximum southern lunar declination events in the given Gregorian month.

func NextMoonMaximumNorthDeclination ¶

func NextMoonMaximumNorthDeclination(jd float64) DeclinationEvent

NextMoonMaximumNorthDeclination 指定时刻之后最近一次月球最大北赤纬 / next maximum northern lunar declination after jd.

func NextMoonMaximumSouthDeclination ¶

func NextMoonMaximumSouthDeclination(jd float64) DeclinationEvent

NextMoonMaximumSouthDeclination 指定时刻之后最近一次月球最大南赤纬 / next maximum southern lunar declination after jd.

type Equatorial ¶

type Equatorial struct {
	RA  float64 // 赤经(度)
	Dec float64 // 赤纬(度)
}

赤道坐标结构体

type InnerStarData ¶

type InnerStarData struct {
	HR     uint16  //Bright Star Number;[1/9110]+ Harvard Revised Number;亮星编号
	Name   string  //Name, generally Bayer(如天狼星：Alpha CMA) and/or Flamsteed(如天狼星：9 CMA) name
	HD     uint32  //Henry Draper Catalog Number;HD星表编号
	Ra     float64 //Ra J2000;J2000历元赤经
	Dec    float64 //De J2000;J2000历元赤纬
	Mag    float64 //视星等
	PmRA   float64 //赤经投影年自行 cos(赤纬)*d赤经/dt，单位角秒/年
	PmDec  float64 //赤纬年自行，单位角秒/年
	RadVel float64 //径向速度 km/s
	RotVel float64 //自行速度 km/s
	Pc     float64 //秒差距
	HIP    uint32  //HIP星表编号
}

func (InnerStarData) RaDecByJde ¶

func (s InnerStarData) RaDecByJde(jde float64) (float64, float64)

type JupiterCentralMeridianInfo ¶

type JupiterCentralMeridianInfo struct {
	// SystemI 木星 System I 照亮盘中央经线，单位度，西经为正。
	SystemI float64
	// SystemII 木星 System II 照亮盘中央经线，单位度，西经为正。
	SystemII float64
	// SystemIII 木星 System III 盘面中央经线，单位度，西经为正。
	SystemIII float64
}

JupiterCentralMeridianInfo 木星中央经线 / Jupiter central meridians.

func JupiterCentralMeridians ¶

func JupiterCentralMeridians(jd float64) JupiterCentralMeridianInfo

JupiterCentralMeridians 木星 System I/II/III 中央经线 / Jupiter System I/II/III central meridians.

func JupiterCentralMeridiansN ¶

func JupiterCentralMeridiansN(jd float64, n int) JupiterCentralMeridianInfo

JupiterCentralMeridiansN 木星 System I/II/III 中央经线（截断版） / truncated Jupiter System I/II/III central meridians.

type JupiterGalileanObservation ¶

type JupiterGalileanObservation struct {
	State JupiterGalileanState

	RA       float64
	Dec      float64
	Distance float64

	OffsetXArcsec float64
	OffsetYArcsec float64

	OffsetXJupiterRadii float64
	OffsetYJupiterRadii float64
	OffsetZJupiterRadii float64

	InFrontOfJupiter bool
}

JupiterGalileanObservation 木星伽利略卫星视位置 / apparent Galilean-satellite geometry.

视位置相对木星中心定义：X 向天球东为正，Y 向天球北为正，Z>0 表示比木星更远、位于盘后。 Apparent offsets are relative to Jupiter's center: X is positive to celestial east, Y to celestial north, and Z>0 means farther than Jupiter and behind the disk.

func JupiterGalileanSatelliteObservation ¶

func JupiterGalileanSatelliteObservation(jd float64, satellite int) JupiterGalileanObservation

JupiterGalileanSatelliteObservation 伽利略卫星视位置 / apparent geometry of a Galilean satellite.

jd 为 TT/TDB 对应儒略日；返回卫星的天球视赤道坐标，以及相对木星中心的东/北平面偏移。 jd is a TT/TDB Julian day. The result contains the satellite's astrometric equatorial coordinates and its east/north sky-plane offsets relative to Jupiter's center.

func JupiterGalileanSatelliteObservations ¶

func JupiterGalileanSatelliteObservations(jd float64) [4]JupiterGalileanObservation

JupiterGalileanSatelliteObservations 四颗伽利略卫星视位置 / apparent geometry of the four Galilean satellites.

返回次序固定为 Io、Europa、Ganymede、Callisto。 The returned order is Io, Europa, Ganymede, Callisto.

type JupiterGalileanPhenomenon ¶

type JupiterGalileanPhenomenon struct {
	Transit       bool
	Occultation   bool
	Eclipse       bool
	ShadowTransit bool

	ShadowOffsetXArcsec float64
	ShadowOffsetYArcsec float64

	ShadowOffsetXJupiterRadii float64
	ShadowOffsetYJupiterRadii float64
}

JupiterGalileanPhenomenon 木星伽利略卫星瞬时现象 / instantaneous Galilean-satellite phenomena.

Transit 表示卫星本体在木星盘前；Occultation 表示卫星在木星盘后被掩蔽；Eclipse 表示卫星落入木星本影；ShadowTransit 表示卫星影心落在可见木星盘面上。 Transit means the satellite itself is in front of Jupiter's disk; Occultation means it is hidden behind the disk; Eclipse means the satellite lies in Jupiter's umbra; ShadowTransit means the center of the satellite shadow falls on the visible Jovian disk.

func JupiterGalileanSatellitePhenomena ¶

func JupiterGalileanSatellitePhenomena(jd float64) [4]JupiterGalileanPhenomenon

JupiterGalileanSatellitePhenomena 四颗伽利略卫星瞬时现象 / instantaneous phenomena of the four Galilean satellites.

func JupiterGalileanSatellitePhenomenon ¶

func JupiterGalileanSatellitePhenomenon(jd float64, satellite int) JupiterGalileanPhenomenon

JupiterGalileanSatellitePhenomenon 单颗伽利略卫星瞬时现象 / instantaneous phenomena of one Galilean satellite.

type JupiterGalileanPhenomenonContact ¶

type JupiterGalileanPhenomenonContact struct {
	Valid bool
	Phase JupiterGalileanPhenomenonContactPhase

	Start         float64
	ModelCrossing float64
	End           float64
}

JupiterGalileanPhenomenonContact 伽利略卫星接触窗口 / Galilean-satellite contact window.

Start/End 表示有限圆盘或有限影斑开始/结束接触的时刻；ModelCrossing 表示这套连续接触模型下，零半径参考点穿越边界的时刻。 Start/End mark the beginning/end of the finite-disk or finite-shadow contact interval. ModelCrossing is the zero-radius boundary crossing in this continuous contact model.

type JupiterGalileanPhenomenonContactEvent ¶

type JupiterGalileanPhenomenonContactEvent struct {
	Valid     bool
	Satellite int
	Type      JupiterGalileanPhenomenonType

	Disappearance JupiterGalileanPhenomenonContact
	Greatest      float64
	Reappearance  JupiterGalileanPhenomenonContact

	GreatestPhenomenon JupiterGalileanPhenomenon
}

JupiterGalileanPhenomenonContactEvent IMCCE 风格的 D/F 接触事件 / IMCCE-style D/F contact event.

与 `JupiterGalileanPhenomenonEvent` 不同，这里返回的是有限圆盘/有限影斑的初亏与复圆接触窗口；现有整场事件 API 返回的则是零半径几何模型处于 active 状态的整段区间。对 `shadow_transit`，这里按 IMCCE 的影凌语义处理：先用半影/本影边界求出部分相持续时间，再把这段持续时间中心放在旧 `shadow_transit` API 的影轴过盘时刻上。 Unlike `JupiterGalileanPhenomenonEvent`, this returns the finite-disk / finite-shadow D/F contact windows. The existing full-event API returns the whole active interval of the zero-radius geometric model. For `shadow_transit`, the partial-phase duration comes from penumbra/umbra boundaries, while the reported D/F time is centered on the shadow-axis limb crossing from the existing full-event model.

func ClosestJupiterGalileanPhenomenonContactEvent ¶

func ClosestJupiterGalileanPhenomenonContactEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonContactEvent

ClosestJupiterGalileanPhenomenonContactEvent 最近一次 IMCCE 风格接触事件 / closest IMCCE-style contact event.

func LastJupiterGalileanPhenomenonContactEvent ¶

func LastJupiterGalileanPhenomenonContactEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonContactEvent

LastJupiterGalileanPhenomenonContactEvent 上一次 IMCCE 风格接触事件 / previous IMCCE-style contact event.

func NextJupiterGalileanPhenomenonContactEvent ¶

func NextJupiterGalileanPhenomenonContactEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonContactEvent

NextJupiterGalileanPhenomenonContactEvent 下一次 IMCCE 风格接触事件 / next IMCCE-style contact event.

type JupiterGalileanPhenomenonContactPhase ¶

type JupiterGalileanPhenomenonContactPhase string

JupiterGalileanPhenomenonContactPhase 接触阶段 / contact phase.

const (
	// JupiterGalileanDisappearanceContact 初亏/初入接触阶段 / disappearance ingress contact.
	JupiterGalileanDisappearanceContact JupiterGalileanPhenomenonContactPhase = "disappearance"
	// JupiterGalileanReappearanceContact 复圆/复出接触阶段 / reappearance egress contact.
	JupiterGalileanReappearanceContact JupiterGalileanPhenomenonContactPhase = "reappearance"
)

type JupiterGalileanPhenomenonEvent ¶

type JupiterGalileanPhenomenonEvent struct {
	Valid     bool
	Satellite int
	Type      JupiterGalileanPhenomenonType

	Start    float64
	Greatest float64
	End      float64

	GreatestPhenomenon JupiterGalileanPhenomenon
}

JupiterGalileanPhenomenonEvent 伽利略卫星现象整场事件 / full Galilean-satellite phenomenon event.

Start、Greatest、End 都使用 UTC/UT 对应的儒略日。 Start, Greatest, and End are UTC/UT Julian days.

func ClosestJupiterGalileanPhenomenonEvent ¶

func ClosestJupiterGalileanPhenomenonEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonEvent

ClosestJupiterGalileanPhenomenonEvent 最近一次伽利略卫星现象 / closest Galilean-satellite event.

func LastJupiterGalileanPhenomenonEvent ¶

func LastJupiterGalileanPhenomenonEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonEvent

LastJupiterGalileanPhenomenonEvent 上一次伽利略卫星现象 / previous Galilean-satellite event.

func NextJupiterGalileanPhenomenonEvent ¶

func NextJupiterGalileanPhenomenonEvent(jd float64, satellite int, phenomenonType JupiterGalileanPhenomenonType) JupiterGalileanPhenomenonEvent

NextJupiterGalileanPhenomenonEvent 下一次伽利略卫星现象 / next Galilean-satellite event.

type JupiterGalileanPhenomenonType ¶

type JupiterGalileanPhenomenonType string

JupiterGalileanPhenomenonType 伽利略卫星现象类型 / Galilean-satellite phenomenon type.

const (
	// JupiterGalileanTransit 凌日 / satellite transit across Jupiter.
	JupiterGalileanTransit JupiterGalileanPhenomenonType = "transit"
	// JupiterGalileanOccultation 掩蔽 / occultation behind Jupiter.
	JupiterGalileanOccultation JupiterGalileanPhenomenonType = "occultation"
	// JupiterGalileanEclipse 食 / eclipse in Jupiter's shadow.
	JupiterGalileanEclipse JupiterGalileanPhenomenonType = "eclipse"
	// JupiterGalileanShadowTransit 影凌 / shadow transit across Jupiter.
	JupiterGalileanShadowTransit JupiterGalileanPhenomenonType = "shadow_transit"
)

type JupiterGalileanState ¶

type JupiterGalileanState struct {
	X  float64
	Y  float64
	Z  float64
	VX float64
	VY float64
	VZ float64
}

JupiterGalileanState 木星伽利略卫星原始状态 / raw Galilean-satellite state.

输入 jd 使用 TT/TDB 对应的儒略日；返回值为 IMCCE L1 理论的木心 J2000 平赤道直角坐标与速度，单位 AU / AU/day。 The input jd is a TT/TDB Julian day. Returned coordinates are Jovicentric J2000 mean-equatorial position and velocity from the IMCCE L1 theory, in AU and AU/day.

func JupiterGalileanSatelliteState ¶

func JupiterGalileanSatelliteState(jd float64, satellite int) JupiterGalileanState

JupiterGalileanSatelliteState 伽利略卫星木心 J2000 状态 / Jovicentric J2000 state of a Galilean satellite.

satellite 取 1=Io, 2=Europa, 3=Ganymede, 4=Callisto。jd 为 TT/TDB 对应儒略日。 satellite is 1=Io, 2=Europa, 3=Ganymede, 4=Callisto. jd is a TT/TDB Julian day.

func JupiterGalileanSatelliteStates ¶

func JupiterGalileanSatelliteStates(jd float64) [4]JupiterGalileanState

JupiterGalileanSatelliteStates 四颗伽利略卫星木心 J2000 状态 / Jovicentric J2000 states of the four Galilean satellites.

返回次序固定为 Io、Europa、Ganymede、Callisto。 The returned order is Io, Europa, Ganymede, Callisto.

type LocalSolarEclipseDiagramFrame ¶

type LocalSolarEclipseDiagramFrame struct {
	// JDE 是力学时儒略日, TT Julian ephemeris day.
	JDE float64
	// MoonX / MoonY 是以太阳视半径为单位的月心相对日心坐标，X 向东为正，Y 向北为正。
	// MoonX/MoonY are Moon-center coordinates relative to the Sun center in Sun-radius units; X east, Y north.
	MoonX float64
	MoonY float64
	// SunRadius 是太阳视半径，单位为图上太阳半径；固定为 1。
	// SunRadius is the Sun radius in diagram Sun-radius units; always 1.
	SunRadius float64
	// MoonRadius 是月球视半径，单位为图上太阳半径。
	// MoonRadius is the Moon apparent radius in Sun-radius units.
	MoonRadius float64
	// Separation 是日月中心角距，单位为度。
	// Separation is the Sun-Moon center separation in degrees.
	Separation float64
	// PositionAngle 是月心相对日心的位置角，从北点起向东量，单位为度。
	// PositionAngle is the Moon-center position angle from north toward east, in degrees.
	PositionAngle float64
	// SunAltitude / SunAzimuth 是太阳站心高度角 / 方位角，单位为度。
	// SunAltitude/SunAzimuth are local Sun altitude/azimuth in degrees.
	SunAltitude float64
	SunAzimuth  float64
	// Label 是关键阶段标签，如 C1/Greatest/C4。
	// Label is a key phase label such as C1/Greatest/C4.
	Label string
	// Labels 是该点对应的全部关键阶段标签；若事件重合，这里会有多个值。
	// Labels contains all phase labels attached to this point.
	Labels []string
}

LocalSolarEclipseDiagramFrame 表示一个时刻的站心日月视圆几何。 LocalSolarEclipseDiagramFrame is local Sun-Moon disk geometry at one instant.

type LocalSolarEclipseDiagramOptions ¶

type LocalSolarEclipseDiagramOptions struct {
	// StepDays 是路径采样步长，单位为日；<=0 时使用 5 分钟。
	// StepDays is the path sampling step in days; values <= 0 use five minutes.
	StepDays float64
}

LocalSolarEclipseDiagramOptions 控制站心日食视圆图采样。 LocalSolarEclipseDiagramOptions controls local solar eclipse disk diagram sampling.

type LocalSolarEclipseDiagramResult ¶

type LocalSolarEclipseDiagramResult struct {
	// Eclipse 是对应的站心日食结果。
	// Eclipse is the local eclipse result used for the diagram.
	Eclipse LocalSolarEclipseResult
	// Frames 是采样帧，太阳固定在 (0,0)，月球按 MoonX/MoonY 绘制。
	// Frames are sampled frames; the Sun is fixed at (0,0), and the Moon uses MoonX/MoonY.
	Frames []LocalSolarEclipseDiagramFrame
	// StepDays 是实际采用的路径采样步长，单位为日。
	// StepDays is the effective path sampling step in days.
	StepDays float64
}

LocalSolarEclipseDiagramResult 表示站心日食视圆图几何结果。 LocalSolarEclipseDiagramResult is the geometry result for a local solar eclipse disk diagram.

func LocalSolarEclipseDiagram ¶

func LocalSolarEclipseDiagram(seedJDE, lon, lat, height float64, options LocalSolarEclipseDiagramOptions) LocalSolarEclipseDiagramResult

LocalSolarEclipseDiagram 计算站心日食视圆图几何数据，默认使用 NASA bulletin Split-K 模型。 LocalSolarEclipseDiagram computes local solar eclipse disk diagram geometry, using NASA bulletin Split-K by default.

func LocalSolarEclipseDiagramIAUSingleK ¶

func LocalSolarEclipseDiagramIAUSingleK(seedJDE, lon, lat, height float64, options LocalSolarEclipseDiagramOptions) LocalSolarEclipseDiagramResult

LocalSolarEclipseDiagramIAUSingleK 计算站心日食视圆图几何数据，使用 IAU Single-K 模型。 LocalSolarEclipseDiagramIAUSingleK computes local solar eclipse disk diagram geometry with the IAU Single-K model.

func LocalSolarEclipseDiagramNASABulletinSplitK ¶

func LocalSolarEclipseDiagramNASABulletinSplitK(seedJDE, lon, lat, height float64, options LocalSolarEclipseDiagramOptions) LocalSolarEclipseDiagramResult

LocalSolarEclipseDiagramNASABulletinSplitK 计算站心日食视圆图几何数据，使用 NASA bulletin Split-K 模型。 LocalSolarEclipseDiagramNASABulletinSplitK computes local solar eclipse disk diagram geometry with the NASA bulletin Split-K model.

type LocalSolarEclipseResult ¶

type LocalSolarEclipseResult struct {
	Model SolarEclipseRadiusModel
	Type  SolarEclipseType

	// GreatestEclipse 是站心盘面中心角距最小的时刻。
	GreatestEclipse float64

	// PartialStart / PartialEnd 是站心偏食始 / 偏食终。
	PartialStart float64
	PartialEnd   float64
	// CentralStart / CentralEnd 是站心中心食始 / 中心食终。
	//
	// 对全食对应食既 / 生光；
	// 对环食对应环食始 / 环食终。
	CentralStart float64
	CentralEnd   float64

	// Magnitude 是站心食分。
	Magnitude float64
	// Obscuration 是食甚时太阳视圆面被月面遮蔽的面积比例，范围 [0, 1]。
	Obscuration float64
	// Separation 是食甚时日月中心的站心角距，单位为度。
	Separation float64

	// SunAltitude / SunAzimuth 是食甚时太阳的站心高度角 / 方位角，单位为度。
	SunAltitude float64
	SunAzimuth  float64

	// VisibleAtGreatest 表示食甚时太阳中心在地平线上方。
	VisibleAtGreatest bool

	HasPartial bool
	HasCentral bool
	HasAnnular bool
	HasTotal   bool
}

LocalSolarEclipseResult 表示某个站点的一次站心日食几何结果。

所有时刻字段都使用力学时儒略日（JDE, TT）。输入 seedJDE 只需要落在目标朔月附近，允许相差数天。

func LocalSolarEclipse ¶

func LocalSolarEclipse(seedJDE, lon, lat, height float64) LocalSolarEclipseResult

LocalSolarEclipse 计算给定近朔时刻附近的一次站心日食，默认使用 NASA bulletin Split-K 模型。

seedJDE 为力学时儒略日（TT），只需落在目标朔月附近，允许相差数天。 lon 为经度，东正西负；lat 为纬度，北正南负；height 为海拔高度，单位米。

func LocalSolarEclipseIAUSingleK ¶

func LocalSolarEclipseIAUSingleK(seedJDE, lon, lat, height float64) LocalSolarEclipseResult

LocalSolarEclipseIAUSingleK 计算给定近朔时刻附近的一次站心日食，使用 IAU Single-K 模型。

func LocalSolarEclipseNASABulletinSplitK ¶

func LocalSolarEclipseNASABulletinSplitK(seedJDE, lon, lat, height float64) LocalSolarEclipseResult

LocalSolarEclipseNASABulletinSplitK 计算给定近朔时刻附近的一次站心日食，使用 NASA bulletin Split-K 模型。

type LunarEclipseDiagramOptions ¶

type LunarEclipseDiagramOptions struct {
	// StepDays 是路径采样步长，单位为日；<=0 时使用 5 分钟。
	// StepDays is the path sampling step in days; values <= 0 use five minutes.
	StepDays float64
}

LunarEclipseDiagramOptions 控制月食穿影图采样。 LunarEclipseDiagramOptions controls lunar eclipse shadow-path diagram sampling.

type LunarEclipseDiagramPoint ¶

type LunarEclipseDiagramPoint struct {
	// JDE 是力学时儒略日, TT Julian ephemeris day.
	JDE float64
	// X / Y 是以月球半径为单位的月心相对地影中心坐标。
	// X/Y are Moon-center coordinates relative to the shadow center, in Moon-radius units.
	X float64
	Y float64
	// Label 是关键接触标签，如 P1/U1/U2/Greatest/U3/U4/P4。
	// Label is a key contact label such as P1/U1/U2/Greatest/U3/U4/P4.
	Label string
	// Labels 是该点对应的全部关键接触标签；若事件重合，这里会有多个值。
	// Labels contains all contact labels attached to this point.
	Labels []string
}

LunarEclipseDiagramPoint 表示月食穿影图上的一个月心位置。 LunarEclipseDiagramPoint is one Moon-center point in a lunar eclipse diagram.

type LunarEclipseDiagramResult ¶

type LunarEclipseDiagramResult struct {
	// Eclipse 是对应的月食结果。
	// Eclipse is the eclipse result used for the diagram.
	Eclipse LunarEclipseResult
	// MoonRadius 是月球半径，单位为图上月球半径；固定为 1。
	// MoonRadius is the Moon radius in diagram Moon-radius units; always 1.
	MoonRadius float64
	// UmbraRadius 是本影半径，单位为图上月球半径。
	// UmbraRadius is the umbral shadow radius in Moon-radius units.
	UmbraRadius float64
	// PenumbraRadius 是半影半径，单位为图上月球半径。
	// PenumbraRadius is the penumbral shadow radius in Moon-radius units.
	PenumbraRadius float64
	// Points 是月心路径点，包含接触点与采样点。
	// Points are Moon-center path points, including contact and sampled points.
	Points []LunarEclipseDiagramPoint
	// StepDays 是实际采用的路径采样步长，单位为日。
	// StepDays is the effective path sampling step in days.
	StepDays float64
}

LunarEclipseDiagramResult 表示月食穿影图几何结果。 LunarEclipseDiagramResult is the geometry result for a lunar eclipse diagram.

func LunarEclipseDiagram ¶

func LunarEclipseDiagram(seedJDE float64, options LunarEclipseDiagramOptions) LunarEclipseDiagramResult

LunarEclipseDiagram 计算月食穿影图几何数据，默认使用 Danjon 影半径模型。 LunarEclipseDiagram computes lunar eclipse diagram geometry, using the Danjon shadow model by default.

func LunarEclipseDiagramChauvenet ¶

func LunarEclipseDiagramChauvenet(seedJDE float64, options LunarEclipseDiagramOptions) LunarEclipseDiagramResult

LunarEclipseDiagramChauvenet 计算月食穿影图几何数据，使用 Chauvenet 影半径模型。 LunarEclipseDiagramChauvenet computes lunar eclipse diagram geometry with the Chauvenet shadow model.

func LunarEclipseDiagramDanjon ¶

func LunarEclipseDiagramDanjon(seedJDE float64, options LunarEclipseDiagramOptions) LunarEclipseDiagramResult

LunarEclipseDiagramDanjon 计算月食穿影图几何数据，使用 Danjon 影半径模型。 LunarEclipseDiagramDanjon computes lunar eclipse diagram geometry with the Danjon shadow model.

type LunarEclipseResult ¶

type LunarEclipseResult struct {
	Type LunarEclipseType

	// Maximum 是食甚时刻；即使最终没有月食，也会返回该次望月附近
	// “月面中心最接近地影中心”的几何极值时刻。
	Maximum float64

	// Magnitude 是本影食分。纯半影月食时可为负值；无月食时为 0。
	Magnitude float64
	// PenumbralMagnitude 是半影食分。无半影接触时为 0。
	PenumbralMagnitude float64

	// MinimumDistance 是食甚时月心到地影中心的最小角距离，单位为弧度。
	MinimumDistance float64

	// Contact times:
	// PenumbralStart / PenumbralEnd: 半影食始 / 半影食终
	// PartialStart / PartialEnd: 初亏 / 复圆
	// TotalStart / TotalEnd: 食既 / 生光
	PenumbralStart float64
	PenumbralEnd   float64
	PartialStart   float64
	PartialEnd     float64
	TotalStart     float64
	TotalEnd       float64

	HasPenumbral bool
	HasPartial   bool
	HasTotal     bool
}

LunarEclipseResult 表示一次望月附近的月食几何结果。

所有时刻字段都使用力学时儒略日（JDE, TT）。输入 seedJDE 只需要落在目标望月附近，允许相差数天。

func LunarEclipse ¶

func LunarEclipse(seedJDE float64) LunarEclipseResult

LunarEclipse 计算给定近望时刻附近的一次月食，默认使用 Danjon 影半径模型。

seedJDE 为力学时儒略日（TT），只需落在目标望月附近，允许相差数天。返回值中的所有接触时刻也都是力学时儒略日。

func LunarEclipseChauvenet ¶

func LunarEclipseChauvenet(seedJDE float64) LunarEclipseResult

LunarEclipseChauvenet 计算给定近望时刻附近的一次月食，使用 Chauvenet 影半径模型。

func LunarEclipseDanjon ¶

func LunarEclipseDanjon(seedJDE float64) LunarEclipseResult

LunarEclipseDanjon 计算给定近望时刻附近的一次月食，使用 Danjon 影半径模型。

type LunarEclipseType ¶

type LunarEclipseType string

LunarEclipseType 表示月食类型。

const (
	// LunarEclipseNone 表示该次望月没有发生月食。
	LunarEclipseNone LunarEclipseType = "none"
	// LunarEclipsePenumbral 表示半影月食。
	LunarEclipsePenumbral LunarEclipseType = "penumbral"
	// LunarEclipsePartial 表示月偏食。
	LunarEclipsePartial LunarEclipseType = "partial"
	// LunarEclipseTotal 表示月全食。
	LunarEclipseTotal LunarEclipseType = "total"
)

type Matrix3 ¶

type Matrix3 [3][3]float64

三维矩阵

type MoonPhysicalInfo ¶

type MoonPhysicalInfo struct {
	// OpticalLongitude 光学经度天平动，单位度 / optical libration in longitude, degrees.
	OpticalLongitude float64
	// OpticalLatitude 光学纬度天平动，单位度 / optical libration in latitude, degrees.
	OpticalLatitude float64
	// PhysicalLongitude 物理经度天平动，单位度 / physical libration in longitude, degrees.
	PhysicalLongitude float64
	// PhysicalLatitude 物理纬度天平动，单位度 / physical libration in latitude, degrees.
	PhysicalLatitude float64
	// LibrationLongitude 总经度天平动，单位度 / total libration in longitude, degrees.
	LibrationLongitude float64
	// LibrationLatitude 总纬度天平动，单位度 / total libration in latitude, degrees.
	LibrationLatitude float64
	// PositionAngle 月球自转轴位置角，单位度 / position angle of the lunar rotation axis, degrees.
	PositionAngle float64
}

MoonPhysicalInfo 月球物理观测参数 / physical observing parameters of the Moon.

func MoonPhysical ¶

func MoonPhysical(jd float64) MoonPhysicalInfo

MoonPhysical 月球物理观测参数 / physical observing parameters of the Moon.

func MoonPhysicalN ¶

func MoonPhysicalN(jd float64, n int) MoonPhysicalInfo

MoonPhysicalN 月球物理观测参数（截断版） / truncated physical observing parameters of the Moon.

func MoonTopocentricPhysical ¶

func MoonTopocentricPhysical(jd, observerLon, observerLat, height float64) MoonPhysicalInfo

MoonTopocentricPhysical 月球站心物理观测参数 / topocentric physical observing parameters of the Moon.

func MoonTopocentricPhysicalN ¶

func MoonTopocentricPhysicalN(jd, observerLon, observerLat, height float64, n int) MoonPhysicalInfo

MoonTopocentricPhysicalN 月球站心物理观测参数（截断版） / truncated topocentric physical observing parameters of the Moon.

type MoonPlanetConjunctionPlanet ¶ added in v0.1.4

type MoonPlanetConjunctionPlanet int

MoonPlanetConjunctionPlanet 月球合月目标行星 / target planet for Moon-planet conjunction events.

const (
	MoonPlanetConjunctionMercury MoonPlanetConjunctionPlanet = iota + 1
	MoonPlanetConjunctionVenus
	MoonPlanetConjunctionMars
	MoonPlanetConjunctionJupiter
	MoonPlanetConjunctionSaturn
	MoonPlanetConjunctionUranus
	MoonPlanetConjunctionNeptune
)

type Observer ¶ added in v0.2.0

type Observer struct {
	// Longitude 是经度，东经为正，单位为度。
	// Longitude is east-positive, in degrees.
	Longitude float64
	// Latitude 是纬度，北纬为正，单位为度。
	// Latitude is north-positive, in degrees.
	Latitude float64
	// Height 是观测者相对平均海平面的高度，单位为米。
	// Height is the observer elevation above mean sea level, in meters.
	Height float64
}

Observer 描述站心观测地点。 Observer describes the topocentric observing site.

func (Observer) Validate ¶ added in v0.2.0

func (o Observer) Validate() error

Validate 检查站心计算所需的地理范围。 Validate checks the geographic bounds needed by topocentric calculations.

type OccultationPathOptions ¶ added in v0.2.0

type OccultationPathOptions struct {
	Step            time.Duration
	TargetSpacingKM float64
}

OccultationPathOptions 控制全球月掩路径采样。

Step 为路径采样的基础时间步长，正值至少为 1 秒。TargetSpacingKM 要求相邻中心线点超过目标地面距离时进行自适应加密。正的 TargetSpacingKM 至少为 1 km；超过中心线或有限盘面路径工作量预算时返回 ErrOccultationPathSamplingLimit，不会静默降低请求分辨率。行星瞬时足迹使用结果中说明的独立有界采样策略。 OccultationPathOptions controls global occultation-path sampling. Step is the base time step used for path samples; positive values must be at least one second. TargetSpacingKM requests adaptive refinement when adjacent center-line points exceed the requested ground distance. Positive TargetSpacingKM values must be at least 1 km. Requests that exceed the center-line or aggregate finite-disk work budgets return ErrOccultationPathSamplingLimit instead of silently reducing resolution. Planetary instantaneous footprints have a separate bounded sampling policy documented on the result.

func (OccultationPathOptions) Validate ¶ added in v0.2.0

func (o OccultationPathOptions) Validate() error

Validate 检查全球路径采样选项。 Validate checks global path sampling options.

type OccultationPathPoint ¶ added in v0.2.0

type OccultationPathPoint struct {
	Time         time.Time
	Longitude    float64
	Latitude     float64
	MoonAltitude float64
	WidthKM      float64
}

OccultationPathPoint 是全球月掩路径上的一个地理采样点。 Start 和 End 描述月缘外接触掩带；WidthKM 是垂直地面轨迹方向的切平面宽度，仅对中心线采样点有意义。基础采样直接求解，自适应插入点使用宽度插值并进行五米采样误差检查。 OccultationPathPoint is a geographic sample of a global lunar-occultation path. Start and End describe the outer lunar-limb footprint. WidthKM is the local tangent-plane width perpendicular to the ground track and is meaningful only on center-line samples. Base samples are solved directly; adaptive samples use width interpolation and five-meter error checks.

type OccultationPlanet ¶ added in v0.2.0

type OccultationPlanet string

OccultationPlanet 标识有限盘面的行星目标。 OccultationPlanet identifies a finite-disk planetary target.

const (
	// OccultationMercury 表示水星有限盘面目标。
	// OccultationMercury identifies Mercury as the finite-disk target.
	OccultationMercury OccultationPlanet = "mercury"
	// OccultationVenus 表示金星有限盘面目标。
	// OccultationVenus identifies Venus as the finite-disk target.
	OccultationVenus OccultationPlanet = "venus"
	// OccultationMars 表示火星有限盘面目标。
	// OccultationMars identifies Mars as the finite-disk target.
	OccultationMars OccultationPlanet = "mars"
	// OccultationJupiter 表示木星有限盘面目标。
	// OccultationJupiter identifies Jupiter as the finite-disk target.
	OccultationJupiter OccultationPlanet = "jupiter"
	// OccultationSaturn 表示土星有限盘面目标。
	// OccultationSaturn identifies Saturn as the finite-disk target.
	OccultationSaturn OccultationPlanet = "saturn"
	// OccultationUranus 表示天王星有限盘面目标。
	// OccultationUranus identifies Uranus as the finite-disk target.
	OccultationUranus OccultationPlanet = "uranus"
	// OccultationNeptune 表示海王星有限盘面目标。
	// OccultationNeptune identifies Neptune as the finite-disk target.
	OccultationNeptune OccultationPlanet = "neptune"
)

func (OccultationPlanet) String ¶ added in v0.2.0

func (p OccultationPlanet) String() string

String 返回结果标识中使用的英文目标名称。 String returns the English target name used in result identifiers.

func (OccultationPlanet) Validate ¶ added in v0.2.0

func (p OccultationPlanet) Validate() error

Validate 检查行星目标是否受支持。 Validate checks whether the planetary target is supported.

type OccultationSearchOptions ¶ added in v0.2.0

type OccultationSearchOptions struct {
	// MaxStep 是粗略搜索的最大步长；小于 250ms 的正值会被拒绝，因为在支持的时间范围内无法可靠地用儒略日浮点数推进。
	// MaxStep is the maximum coarse-search step. Positive values below 250 ms are rejected because they cannot be advanced reliably in Julian-day floating-point arithmetic over the supported time span.
	MaxStep time.Duration
	// SafetyMarginArcsec 是加入粗略候选和黄纬预筛的安全余量，单位为角秒。
	// SafetyMarginArcsec is added to coarse candidate and latitude prefilters.
	SafetyMarginArcsec float64
	// MaxEvents 为正时限制返回事件数量。
	// MaxEvents limits the number of returned events when positive.
	MaxEvents int
}

OccultationSearchOptions 控制固定目标和行星月掩搜索。零值使用实现默认值；MaxEvents == 0 表示不限制数量。 OccultationSearchOptions controls fixed-target and planetary occultation searches. Zero values select implementation defaults; MaxEvents == 0 means unlimited.

func (OccultationSearchOptions) Validate ¶ added in v0.2.0

func (o OccultationSearchOptions) Validate() error

Validate 检查选项值，但不选择算法专用默认值。 Validate checks option values without selecting algorithm-specific defaults.

type OccultationType ¶ added in v0.2.0

type OccultationType string

OccultationType 标识月掩结果的几何类型。 OccultationType identifies the result geometry.

const (
	// OccultationTotal 表示掩甚时目标盘面被完全覆盖。
	// OccultationTotal means the target disk is fully covered at greatest occultation.
	OccultationTotal OccultationType = "total"
	// OccultationPartial 表示掩甚时有限目标盘面只有部分被覆盖。
	// OccultationPartial means only part of a finite target disk is covered at greatest occultation.
	OccultationPartial OccultationType = "partial"
	// OccultationGrazing 表示两边缘相切，且没有正持续时间的重叠。
	// OccultationGrazing means the limbs are tangent without a positive-duration overlap.
	OccultationGrazing OccultationType = "grazing"
)

type OrbitElements ¶

type OrbitElements struct {
	EpochJD float64
	A       float64 // 半长径 / semi-major axis in AU.
	E       float64 // 离心率 / eccentricity.
	I       float64 // 轨道倾角 / inclination in degrees.
	Omega   float64 // 升交点黄经 / longitude of ascending node in degrees.
	W       float64 // 近日点幅角 / argument of perihelion in degrees.
	M0      float64 // 历元平近点角 / mean anomaly at epoch in degrees.
	Q       float64 // 近日点距离 / perihelion distance in AU.
	TpJD    float64 // 近日点通过时刻 / perihelion passage TT/TDB Julian day.

	ADot     float64 // 半长径日变化 / daily rate of A in AU/day.
	EDot     float64 // 离心率日变化 / daily rate of E per day.
	IDot     float64 // 倾角日变化 / daily rate of I in deg/day.
	OmegaDot float64 // 升交点黄经日变化 / daily rate of Omega in deg/day.
	WDot     float64 // 近日点幅角日变化 / daily rate of W in deg/day.
	MDot     float64 // 平近点角日变化 / daily rate of M in deg/day.
}

OrbitElements 日心二体圆锥曲线根数，参考系为 J2000 平黄道/平春分点。 EpochJD 与 TpJD 使用 TT/TDB 对应的儒略日。

两种输入形式： 1. 椭圆经典根数：A/E/I/Omega/W/M0（原有形式） 2. 近日点形式：Q/E/I/Omega/W/TpJD，用于高偏心、抛物或双曲轨道

线性 rates 仅作用于经典根数形式，单位均为“每天变化量”。

type PlanetOccultationDiagramFrame ¶ added in v0.2.0

type PlanetOccultationDiagramFrame struct {
	// JDE 是 TT 儒略历书日。
	// JDE is the TT Julian ephemeris day.
	JDE float64
	// PlanetXArcsec 和 PlanetYArcsec 是相对月心的切平面偏移，单位为角秒。X 向东为正，Y 向北为正。
	// PlanetXArcsec and PlanetYArcsec are tangent-plane offsets from the lunar center. X is positive east and Y is positive north.
	PlanetXArcsec float64
	PlanetYArcsec float64
	// MoonRadiusArcsec 和 PlanetRadiusArcsec 是站心视半径，单位为角秒。
	// MoonRadiusArcsec and PlanetRadiusArcsec are topocentric apparent semidiameters.
	MoonRadiusArcsec   float64
	PlanetRadiusArcsec float64
	// SeparationArcsec 和 PositionAngleDeg 描述行星中心相对月心的位置。
	// SeparationArcsec and PositionAngleDeg describe the planet center relative to the lunar center.
	SeparationArcsec float64
	PositionAngleDeg float64
	// MoonAltitudeDeg 和 MoonAzimuthDeg 是站心地平坐标。
	// MoonAltitudeDeg and MoonAzimuthDeg are topocentric horizontal coordinates.
	MoonAltitudeDeg float64
	MoonAzimuthDeg  float64
	// DisksOverlap 表示两个视盘面存在正面积交集。
	// DisksOverlap is true while the two apparent disks have a positive-area intersection.
	DisksOverlap bool
	// FullyOcculted 表示行星盘面完全位于月缘内侧。
	// FullyOcculted is true while the planet disk lies strictly inside the lunar limb.
	FullyOcculted bool
	// Label 是主阶段标识；Labels 在掠掩事件中保留重合阶段。
	// Label is the primary key phase; Labels retains coincident phases for grazing events.
	Label  string
	Labels []string
}

PlanetOccultationDiagramFrame 描述一个时刻的站心月球与行星几何。 PlanetOccultationDiagramFrame describes topocentric Moon-planet geometry at one instant.

type PlanetOccultationDiagramOptions ¶ added in v0.2.0

type PlanetOccultationDiagramOptions struct {
	// StepDays 是请求的轨迹采样步长，单位为日；非正值或非有限值使用两分钟，正值小于一秒时使用一秒。长事件可能增大实际步长，使基础轨迹不超过 2000 个采样点；必要阶段帧仍会额外保留。结果会报告实际采用的值。
	// StepDays is the requested track sampling step in days. Non-positive or non-finite values use two minutes, and positive values below one second use one second. Long events may increase the effective step to keep the base track within 2000 samples; required phase frames are retained in addition. The result reports the effective value.
	StepDays float64
}

PlanetOccultationDiagramOptions 控制本地行星月掩轨迹采样。 PlanetOccultationDiagramOptions controls local planetary-occultation track sampling.

type PlanetOccultationDiagramResult ¶ added in v0.2.0

type PlanetOccultationDiagramResult struct {
	Occultation PlanetOccultationInfo
	Frames      []PlanetOccultationDiagramFrame
	// StepDays 是实际采用的基础轨迹采样步长，单位为日。
	// StepDays is the effective base-track sampling step in days.
	StepDays float64
}

PlanetOccultationDiagramResult 包含固定地点行星月掩的几何数据。 PlanetOccultationDiagramResult contains geometry for a fixed-site planetary occultation.

func PlanetOccultationDiagram ¶ added in v0.2.0

func PlanetOccultationDiagram(
	info PlanetOccultationInfo,
	options PlanetOccultationDiagramOptions,
) PlanetOccultationDiagramResult

PlanetOccultationDiagram 为已求解的固定地点行星月掩计算以月心为原点的切平面轨迹。事件数据无效或不完整时，结果不含帧。 PlanetOccultationDiagram computes a Moon-centered tangent-plane track for an already solved fixed-site planetary occultation. Invalid or incomplete event data produces a result without frames.

type PlanetOccultationFootprint ¶ added in v0.2.0

type PlanetOccultationFootprint struct {
	Time     time.Time
	Polygons [][]OccultationPathPoint
}

PlanetOccultationFootprint 是一个时刻的可见接触足迹。 Polygons 包含接触锥圆弧；当锥面与椭球的交线在朝月半球开放时，沿月球地平线闭合。 PlanetOccultationFootprint is one instantaneous visible contact footprint. Polygons contain contact-cone arcs closed along the lunar horizon when the cone/ellipsoid intersection is open on the Moon-facing hemisphere.

type PlanetOccultationInfo ¶ added in v0.2.0

type PlanetOccultationInfo struct {
	Planet   OccultationPlanet
	TargetID string
	Observer Observer
	Type     OccultationType

	ExternalImmersion time.Time
	InternalImmersion time.Time
	Greatest          time.Time
	InternalEmersion  time.Time
	ExternalEmersion  time.Time

	HasInternalContacts bool
	ContactsComplete    bool

	MinimumSeparationArcsec  float64
	PositionAngleDeg         float64
	MoonSemidiameterArcsec   float64
	PlanetSemidiameterArcsec float64

	MoonAltitudeAtGreatest float64
	MoonAzimuthAtGreatest  float64
	VisibleAtGreatest      bool
}

PlanetOccultationInfo 描述有限盘面行星月掩。 ExternalImmersion 和 ExternalEmersion 分别是 C1 和 C4；全掩事件的 InternalImmersion 和 InternalEmersion 分别是 C2 和 C3，偏掩和掠掩时为零。 ContactsComplete 表示报告几何适用的所有接触均已求解；目标按赤道半径建模为圆盘，环、大气延伸和扁率不在模型内。 PlanetOccultationInfo describes a finite-disk planetary occultation. ExternalImmersion and ExternalEmersion are C1 and C4. For a total event, InternalImmersion and InternalEmersion are C2 and C3; they are zero for partial and grazing events. ContactsComplete means every contact applicable to the reported geometry was solved. The target is modeled as a circular disk using its equatorial body radius; rings, atmospheric extensions, and oblateness are outside this contact model.

func FindBestPlanetOccultations ¶ added in v0.2.0

func FindBestPlanetOccultations(start, end time.Time, planet OccultationPlanet,
	options OccultationSearchOptions) ([]PlanetOccultationInfo, error)

FindBestPlanetOccultations 返回窗口内每次有限盘面行星月掩的全球海平面几何掩甚点。地心数据只用于搜索初值；返回位置与 FindPlanetOccultationPaths 一致，地平线可见性只报告、不参与点选择。距离查询端点 10 ms 内的掩甚时刻也会包含，与数值根精度一致。 FindBestPlanetOccultations returns the global geometric greatest point at sea level for every finite-disk planetary occultation in the window. Geocentric data only seeds the search. The returned location matches FindPlanetOccultationPaths; horizon visibility is reported but does not select the point. A greatest instant within 10 ms of either query endpoint is included, matching the numerical root precision.

func FindPlanetOccultations ¶ added in v0.2.0

func FindPlanetOccultations(start, end time.Time, planet OccultationPlanet, longitude, latitude, height float64,
	options OccultationSearchOptions) ([]PlanetOccultationInfo, error)

FindPlanetOccultations 搜索固定观测点的有限盘面行星月掩。经度东为正、纬度北为正，单位为度；高度为平均海平面以上米数。目标位置、视差和视半径会在每次候选、掩甚和接触计算时重新计算。 FindPlanetOccultations searches one finite-disk planet at a fixed observing site. Longitude is east-positive in degrees, latitude is north-positive in degrees, and height is the observer elevation above mean sea level in meters. The target position, parallax, and semidiameter are recomputed at every candidate, greatest, and contact evaluation.

type PlanetOccultationPath ¶ added in v0.2.0

type PlanetOccultationPath struct {
	Planet   OccultationPlanet
	TargetID string

	Start    OccultationPathPoint
	Greatest OccultationPathPoint
	End      OccultationPathPoint
	// Complete 表示 Start 和 End 是全球外接触点。
	// Complete is true when Start and End are the global outer contacts.
	Complete bool

	CenterLine    []OccultationPathPoint
	NorthernLimit []OccultationPathPoint
	SouthernLimit []OccultationPathPoint
	// PartialFootprints 是时刻采样的可见外接触区域，其扫掠构成全球偏掩区域；为限制输出和运行时间，采样可能比 Step 更粗，
	// 每个足迹携带实际采样时刻。
	// PartialFootprints are instantaneous visible outer-contact regions whose sweep forms the global partial-occultation area. To bound output and runtime, sampling may be coarser than Step; each footprint carries its actual sample time.
	PartialFootprints []PlanetOccultationFootprint

	HasTotalBand bool
	// TotalStart 和 TotalEnd 是全球内接触的起止点。
	// TotalStart and TotalEnd are the first and last global inner contacts.
	TotalStart OccultationPathPoint
	TotalEnd   OccultationPathPoint
	// TotalComplete 表示 TotalStart 和 TotalEnd 未被内部搜索范围截断。
	// TotalComplete is true when TotalStart and TotalEnd are not clipped by the internal search span.
	TotalComplete bool

	NorthernTotalLimit []OccultationPathPoint
	SouthernTotalLimit []OccultationPathPoint
	// TotalFootprints 是时刻采样的可见内接触区域，其扫掠构成全球全掩区域；采样使用与 PartialFootprints 相同的有界策略。
	// TotalFootprints are instantaneous visible inner-contact regions whose sweep forms the global full-coverage area. Their sampling uses the same bounded policy as PartialFootprints.
	TotalFootprints []PlanetOccultationFootprint
	// GreatestTotalWidthKM 是全球掩甚时的全掩带宽度。
	// GreatestTotalWidthKM is the full-coverage band width at global greatest.
	GreatestTotalWidthKM float64

	Step            time.Duration
	TargetSpacingKM float64
}

PlanetOccultationPath 包含有限盘面行星月掩的全球掩带。 NorthernLimit 和 SouthernLimit 是行星盘面任意部分被覆盖的外接触边界。 HasTotalBand 为 true 时，NorthernTotalLimit 和 SouthernTotalLimit 是行星圆盘完全被月球覆盖的内接触边界；环、大气延伸和扁率不在两种接触模型内。 PlanetOccultationPath contains the global footprint of a finite-disk planetary occultation. NorthernLimit and SouthernLimit are the outer-contact boundaries where any part of the planet disk is covered. When HasTotalBand is true, NorthernTotalLimit and SouthernTotalLimit are the inner-contact boundaries where the complete circular planet disk is covered by the Moon. Rings, atmospheric extensions, and oblateness are outside both contact models.

func FindPlanetOccultationPaths ¶ added in v0.2.0

func FindPlanetOccultationPaths(start, end time.Time, planet OccultationPlanet,
	options OccultationPathOptions) ([]PlanetOccultationPath, error)

FindPlanetOccultationPaths 搜索有限盘面行星月掩的全球外接触和内接触掩带。查询窗口按全球几何掩甚点选择事件；端点容差 10 ms 与数值根精度一致。求解成功时，每条路径扩展到完整全球起止点。 FindPlanetOccultationPaths searches the global outer- and inner-contact footprints of one finite-disk planet. The query window selects events by global geometric greatest, with a 10 ms endpoint tolerance matching the numerical root precision. Each returned path expands to its complete global start and end when solved.

type PlanetPhysicalInfo ¶

type PlanetPhysicalInfo struct {
	// SubEarthLongitude 子地经度，单位度；正方向遵循该天体当前 IAU/Horizons 制图约定。
	SubEarthLongitude float64
	// SubEarthLatitude 子地纬度，单位度。
	SubEarthLatitude float64
	// SubSolarLongitude 子日经度，单位度；正方向遵循该天体当前 IAU/Horizons 制图约定。
	SubSolarLongitude float64
	// SubSolarLatitude 子日纬度，单位度。
	SubSolarLatitude float64
	// NorthPolePositionAngle 天体北极位置角，单位度。
	NorthPolePositionAngle float64
}

PlanetPhysicalInfo 行星物理观测参数 / planetary physical observing parameters.

func JupiterPhysical ¶

func JupiterPhysical(jd float64) PlanetPhysicalInfo

JupiterPhysical 木星物理观测参数 / physical observing parameters of Jupiter.

func JupiterPhysicalN ¶

func JupiterPhysicalN(jd float64, n int) PlanetPhysicalInfo

JupiterPhysicalN 木星物理观测参数（截断版） / truncated physical observing parameters of Jupiter.

func MarsPhysical ¶

func MarsPhysical(jd float64) PlanetPhysicalInfo

MarsPhysical 火星物理观测参数 / physical observing parameters of Mars.

func MarsPhysicalN ¶

func MarsPhysicalN(jd float64, n int) PlanetPhysicalInfo

MarsPhysicalN 火星物理观测参数（截断版） / truncated physical observing parameters of Mars.

func MercuryPhysical ¶

func MercuryPhysical(jd float64) PlanetPhysicalInfo

MercuryPhysical 水星物理观测参数 / physical observing parameters of Mercury.

func MercuryPhysicalN ¶

func MercuryPhysicalN(jd float64, n int) PlanetPhysicalInfo

MercuryPhysicalN 水星物理观测参数（截断版） / truncated physical observing parameters of Mercury.

func NeptunePhysical ¶

func NeptunePhysical(jd float64) PlanetPhysicalInfo

NeptunePhysical 海王星物理观测参数 / physical observing parameters of Neptune.

func NeptunePhysicalN ¶

func NeptunePhysicalN(jd float64, n int) PlanetPhysicalInfo

NeptunePhysicalN 海王星物理观测参数（截断版） / truncated physical observing parameters of Neptune.

func SaturnPhysical ¶

func SaturnPhysical(jd float64) PlanetPhysicalInfo

SaturnPhysical 土星物理观测参数 / physical observing parameters of Saturn.

func SaturnPhysicalN ¶

func SaturnPhysicalN(jd float64, n int) PlanetPhysicalInfo

SaturnPhysicalN 土星物理观测参数（截断版） / truncated physical observing parameters of Saturn.

func UranusPhysical ¶

func UranusPhysical(jd float64) PlanetPhysicalInfo

UranusPhysical 天王星物理观测参数 / physical observing parameters of Uranus.

func UranusPhysicalN ¶

func UranusPhysicalN(jd float64, n int) PlanetPhysicalInfo

UranusPhysicalN 天王星物理观测参数（截断版） / truncated physical observing parameters of Uranus.

func VenusPhysical ¶

func VenusPhysical(jd float64) PlanetPhysicalInfo

VenusPhysical 金星物理观测参数 / physical observing parameters of Venus.

func VenusPhysicalN ¶

func VenusPhysicalN(jd float64, n int) PlanetPhysicalInfo

VenusPhysicalN 金星物理观测参数（截断版） / truncated physical observing parameters of Venus.

type PlanetTransitResult ¶ added in v0.1.1

type PlanetTransitResult struct {
	Valid bool

	// PlanetIndex 为行星序号，1 表示水星，2 表示金星。
	PlanetIndex int

	// ExternalIngress / ExternalEgress 为一触 / 四触。
	ExternalIngress float64
	ExternalEgress  float64
	// InternalIngress / InternalEgress 为二触 / 三触。掠凌没有内切接触时为 0。
	InternalIngress float64
	InternalEgress  float64
	// Greatest 为凌甚，即行星中心最接近太阳中心的时刻。
	Greatest float64

	MinimumSeparationArcsec  float64
	SunSemidiameterArcsec    float64
	PlanetSemidiameterArcsec float64

	HasExternal bool
	HasInternal bool
}

PlanetTransitResult 表示一次地心行星凌日结果。

Valid 为 false 时表示没有找到有效凌日。所有时刻字段均为 UT 儒略日。 MinimumSeparationArcsec、SunSemidiameterArcsec、PlanetSemidiameterArcsec 的单位均为角秒。

func ClosestMercuryTransit ¶ added in v0.1.1

func ClosestMercuryTransit(jde float64) PlanetTransitResult

ClosestMercuryTransit 返回距给定时刻最近的一次地心水星凌日。

func ClosestVenusTransit ¶ added in v0.1.1

func ClosestVenusTransit(jde float64) PlanetTransitResult

ClosestVenusTransit 返回距给定时刻最近的一次地心金星凌日。

func LastMercuryTransit ¶ added in v0.1.1

func LastMercuryTransit(jde float64) PlanetTransitResult

LastMercuryTransit 返回给定时刻之前的上一次地心水星凌日。

func LastVenusTransit ¶ added in v0.1.1

func LastVenusTransit(jde float64) PlanetTransitResult

LastVenusTransit 返回给定时刻之前的上一次地心金星凌日。

func NextMercuryTransit ¶ added in v0.1.1

func NextMercuryTransit(jde float64) PlanetTransitResult

NextMercuryTransit 返回给定时刻之后的下一次地心水星凌日。

func NextVenusTransit ¶ added in v0.1.1

func NextVenusTransit(jde float64) PlanetTransitResult

NextVenusTransit 返回给定时刻之后的下一次地心金星凌日。

type SolarEclipseCentrality ¶

type SolarEclipseCentrality string

SolarEclipseCentrality 表示中心线进入地球的方式。

const (
	// SolarEclipseNonCentral 表示无中心线进入地球。
	SolarEclipseNonCentral SolarEclipseCentrality = "non_central"
	// SolarEclipseCentralOneLimit 表示中心线只形成一侧极限条件。
	SolarEclipseCentralOneLimit SolarEclipseCentrality = "central_one_limit"
	// SolarEclipseCentralTwoLimits 表示中心线完整进入地球，两侧都有界线。
	SolarEclipseCentralTwoLimits SolarEclipseCentrality = "central_two_limits"
)

type SolarEclipsePartialAreaOptions ¶

type SolarEclipsePartialAreaOptions = SolarEclipsePartialFootprintOptions

SolarEclipsePartialAreaOptions 是 SolarEclipsePartialFootprintOptions 的兼容别名。 SolarEclipsePartialAreaOptions is a compatibility alias for SolarEclipsePartialFootprintOptions.

type SolarEclipsePartialAreaResult ¶

type SolarEclipsePartialAreaResult = SolarEclipsePartialFootprintsResult

SolarEclipsePartialAreaResult 是 SolarEclipsePartialFootprintsResult 的兼容别名。 SolarEclipsePartialAreaResult is a compatibility alias for SolarEclipsePartialFootprintsResult.

func SolarEclipsePartialArea ¶

func SolarEclipsePartialArea(seedJDE float64, options SolarEclipsePartialAreaOptions) SolarEclipsePartialAreaResult

SolarEclipsePartialArea 计算日食偏食半影足迹序列，是 SolarEclipsePartialFootprints 的兼容包装。 SolarEclipsePartialArea computes penumbral footprint samples and is a compatibility wrapper for SolarEclipsePartialFootprints.

func SolarEclipsePartialAreaIAUSingleK ¶

func SolarEclipsePartialAreaIAUSingleK(seedJDE float64, options SolarEclipsePartialAreaOptions) SolarEclipsePartialAreaResult

SolarEclipsePartialAreaIAUSingleK 计算日食偏食半影足迹序列，是 SolarEclipsePartialFootprintsIAUSingleK 的兼容包装。 SolarEclipsePartialAreaIAUSingleK is a compatibility wrapper for SolarEclipsePartialFootprintsIAUSingleK.

func SolarEclipsePartialAreaNASABulletinSplitK ¶

func SolarEclipsePartialAreaNASABulletinSplitK(seedJDE float64, options SolarEclipsePartialAreaOptions) SolarEclipsePartialAreaResult

SolarEclipsePartialAreaNASABulletinSplitK 计算日食偏食半影足迹序列，是 SolarEclipsePartialFootprintsNASABulletinSplitK 的兼容包装。 SolarEclipsePartialAreaNASABulletinSplitK is a compatibility wrapper for SolarEclipsePartialFootprintsNASABulletinSplitK.

type SolarEclipsePartialFootprint ¶

type SolarEclipsePartialFootprint struct {
	// JDE 是力学时儒略日, TT Julian ephemeris day.
	JDE float64
	// Boundaries 是半影边界分段；反经线或无效投影会拆成多段。
	// Boundaries are segmented penumbral boundary polylines, split at invalid projections or the antimeridian.
	Boundaries [][]SolarEclipsePathPoint
	// Closed 表示 Boundaries 是否构成一个闭合边界。
	// Closed indicates whether Boundaries form one closed boundary.
	Closed bool
}

SolarEclipsePartialFootprint 表示某一时刻的半影足迹边界。 SolarEclipsePartialFootprint is the penumbral footprint boundary at one instant.

type SolarEclipsePartialFootprintOptions ¶

type SolarEclipsePartialFootprintOptions struct {
	// StepDays 是基础时间采样步长，单位为日；<=0 时使用 5 分钟。
	// StepDays is the base time step in days; values <= 0 use five minutes.
	StepDays float64
	// BoundaryPoints 是每个瞬时半影边界的角向采样点数；<=0 时使用 180。
	// BoundaryPoints is the angular sample count for each instantaneous penumbral boundary; values <= 0 use 180.
	BoundaryPoints int
	// CentralShadowStepDays 是本影/反本影瞬时足迹的时间步长，单位为日；<=0 时不计算。
	// CentralShadowStepDays is the umbral/antumbral footprint step in days; values <= 0 disable it.
	CentralShadowStepDays float64
}

SolarEclipsePartialFootprintOptions 控制日食偏食半影足迹采样。 SolarEclipsePartialFootprintOptions controls solar eclipse penumbral footprint sampling.

type SolarEclipsePartialFootprintsResult ¶

type SolarEclipsePartialFootprintsResult struct {
	// Eclipse 是对应的全局日食结果, related global solar eclipse result.
	Eclipse SolarEclipseResult
	// Footprints 是按时间采样的瞬时半影足迹, sampled instantaneous penumbral footprints.
	Footprints []SolarEclipsePartialFootprint
	// CentralShadowFootprints 是按时间采样的本影/反本影足迹。
	// CentralShadowFootprints are sampled umbral/antumbral footprints.
	CentralShadowFootprints []SolarEclipsePartialFootprint
	// P1-P4 是半影与地球的外切/内切接触点；不存在的内切点保持零值。
	// P1-P4 are external/internal penumbral contacts; absent internal contacts remain zero.
	P1 SolarEclipsePathPoint
	P2 SolarEclipsePathPoint
	P3 SolarEclipsePathPoint
	P4 SolarEclipsePathPoint
	// U1-U4 是本影/反本影与地球的外切/内切接触点；不存在时保持零值。
	// U1-U4 are external/internal umbral/antumbral contacts; absent contacts remain zero.
	U1 SolarEclipsePathPoint
	U2 SolarEclipsePathPoint
	U3 SolarEclipsePathPoint
	U4 SolarEclipsePathPoint
	// StepDays 是实际采用的基础时间采样步长，单位为日。
	// StepDays is the effective base time step in days.
	StepDays float64
	// BoundaryPoints 是实际采用的边界角向采样点数。
	// BoundaryPoints is the effective angular sample count for each boundary.
	BoundaryPoints int
	// CentralShadowStepDays 是本影/反本影足迹的实际采样步长；0 表示未计算。
	// CentralShadowStepDays is the effective umbral/antumbral footprint step; zero means disabled.
	CentralShadowStepDays float64
}

SolarEclipsePartialFootprintsResult 表示一次日食的偏食半影足迹序列。 SolarEclipsePartialFootprintsResult contains penumbral footprint samples for a solar eclipse.

func SolarEclipsePartialFootprints ¶

func SolarEclipsePartialFootprints(seedJDE float64, options SolarEclipsePartialFootprintOptions) SolarEclipsePartialFootprintsResult

SolarEclipsePartialFootprints 计算给定近朔时刻附近的日食偏食半影足迹序列，默认使用 NASA bulletin Split-K 模型。 SolarEclipsePartialFootprints computes penumbral footprint samples near the given new-moon seed, using NASA bulletin Split-K by default.

func SolarEclipsePartialFootprintsIAUSingleK ¶

func SolarEclipsePartialFootprintsIAUSingleK(seedJDE float64, options SolarEclipsePartialFootprintOptions) SolarEclipsePartialFootprintsResult

SolarEclipsePartialFootprintsIAUSingleK 计算日食偏食半影足迹序列，使用 IAU Single-K 模型。 SolarEclipsePartialFootprintsIAUSingleK computes penumbral footprint samples with the IAU Single-K model.

func SolarEclipsePartialFootprintsNASABulletinSplitK ¶

func SolarEclipsePartialFootprintsNASABulletinSplitK(seedJDE float64, options SolarEclipsePartialFootprintOptions) SolarEclipsePartialFootprintsResult

SolarEclipsePartialFootprintsNASABulletinSplitK 计算日食偏食半影足迹序列，使用 NASA bulletin Split-K 模型。 SolarEclipsePartialFootprintsNASABulletinSplitK computes penumbral footprint samples with the NASA bulletin Split-K model.

type SolarEclipsePathOptions ¶

type SolarEclipsePathOptions struct {
	// StepDays 是基础时间采样步长，单位为日；<=0 时使用 1 分钟。
	// StepDays is the base time step in days; values <= 0 use one minute.
	StepDays float64
	// TargetSpacingKM 是相邻中心线点的最大目标地表距离；<=0 时不按距离加密。
	// TargetSpacingKM is the target maximum ground spacing between centerline points; values <= 0 disable spacing refinement.
	TargetSpacingKM float64
}

SolarEclipsePathOptions 控制日食中心路径采样。 SolarEclipsePathOptions controls central solar eclipse path sampling.

type SolarEclipsePathPoint ¶

type SolarEclipsePathPoint struct {
	// JDE 是力学时儒略日, TT Julian ephemeris day.
	JDE float64
	// Longitude 经度，东正西负, longitude in degrees, east positive.
	Longitude float64
	// Latitude 纬度，北正南负, latitude in degrees, north positive.
	Latitude float64
	// SunAltitude 太阳高度角，单位度, Sun altitude in degrees.
	SunAltitude float64
	// WidthKM 中心食带宽度，单位千米；仅中心线点有意义。
	// WidthKM is the central path width in kilometers; meaningful for centerline points.
	WidthKM float64
}

SolarEclipsePathPoint 表示日食路径上的一个地理点。 SolarEclipsePathPoint is one geographic point on a solar eclipse path.

type SolarEclipsePathResult ¶

type SolarEclipsePathResult struct {
	// Eclipse 是对应的全局日食结果, related global solar eclipse result.
	Eclipse SolarEclipseResult
	// Greatest 是食甚点/最佳观测点, greatest eclipse point.
	Greatest SolarEclipsePathPoint
	// CenterLine 是中心线, central line.
	CenterLine []SolarEclipsePathPoint
	// NorthernLimit 是中心食带北界近似线, approximate northern limit of the central path.
	NorthernLimit []SolarEclipsePathPoint
	// SouthernLimit 是中心食带南界近似线, approximate southern limit of the central path.
	SouthernLimit []SolarEclipsePathPoint
	// StepDays 是实际采用的基础时间采样步长，单位为日。
	// StepDays is the effective base time step in days.
	StepDays float64
	// TargetSpacingKM 是实际采用的目标空间采样距离，单位千米。
	// TargetSpacingKM is the effective target spacing in kilometers.
	TargetSpacingKM float64
}

SolarEclipsePathResult 表示一次中心日食的路径数据。 SolarEclipsePathResult contains central solar eclipse path data.

func SolarEclipseCentralPath ¶

func SolarEclipseCentralPath(seedJDE float64, options SolarEclipsePathOptions) SolarEclipsePathResult

SolarEclipseCentralPath 计算给定近朔时刻附近的日食中心路径，默认使用 NASA bulletin Split-K 模型。 SolarEclipseCentralPath computes the central path near the given new-moon seed, using NASA bulletin Split-K by default.

func SolarEclipseCentralPathIAUSingleK ¶

func SolarEclipseCentralPathIAUSingleK(seedJDE float64, options SolarEclipsePathOptions) SolarEclipsePathResult

SolarEclipseCentralPathIAUSingleK 计算日食中心路径，使用 IAU Single-K 模型。 SolarEclipseCentralPathIAUSingleK computes the central path with the IAU Single-K model.

func SolarEclipseCentralPathNASABulletinSplitK ¶

func SolarEclipseCentralPathNASABulletinSplitK(seedJDE float64, options SolarEclipsePathOptions) SolarEclipsePathResult

SolarEclipseCentralPathNASABulletinSplitK 计算日食中心路径，使用 NASA bulletin Split-K 模型。 SolarEclipseCentralPathNASABulletinSplitK computes the central path with the NASA bulletin Split-K model.

type SolarEclipseRadiusModel ¶

type SolarEclipseRadiusModel string

SolarEclipseRadiusModel 表示日食计算中月亮平均半径 k 的取法。

const (
	// SolarEclipseModelIAUSingleK 使用 IAU 单一月亮平均半径 k。
	SolarEclipseModelIAUSingleK SolarEclipseRadiusModel = "iau_single_k"
	// SolarEclipseModelNASABulletinSplitK 使用 NASA bulletin 的 Split-K 口径。
	SolarEclipseModelNASABulletinSplitK SolarEclipseRadiusModel = "nasa_bulletin_split_k"
)

type SolarEclipseResult ¶

type SolarEclipseResult struct {
	Model      SolarEclipseRadiusModel
	Type       SolarEclipseType
	Centrality SolarEclipseCentrality

	// GreatestEclipse 是全局“影轴最接近地心”的时刻。
	GreatestEclipse float64

	// PartialBeginOnEarth / PartialEndOnEarth 是地球范围的偏食开始 / 结束时刻。
	PartialBeginOnEarth float64
	PartialEndOnEarth   float64
	// CentralBeginOnEarth / CentralEndOnEarth 是中心线进入 / 离开地球的时刻。
	CentralBeginOnEarth float64
	CentralEndOnEarth   float64

	// Magnitude 是全局食分。
	Magnitude float64
	// Gamma 是月影轴到地心的有符号最小距离，单位为地球赤道半径。
	Gamma float64
	// PathWidthKM 是食甚点处中心食带宽度。非中心食时为 0。
	PathWidthKM float64

	// GreatestLongitude / GreatestLatitude 是日食食甚点地理坐标，东经为正，西经为负。
	GreatestLongitude float64
	GreatestLatitude  float64

	HasPartial bool
	HasCentral bool
	HasAnnular bool
	HasTotal   bool
	HasHybrid  bool
}

SolarEclipseResult 表示一次朔月附近的全局日食几何结果。

所有时刻字段都使用力学时儒略日（JDE, TT）。输入 seedJDE 只需要落在目标朔月附近，允许相差数天。

func SolarEclipse ¶

func SolarEclipse(seedJDE float64) SolarEclipseResult

SolarEclipse 计算给定近朔时刻附近的一次全局日食，默认使用 NASABulletin Split-K 模型。

func SolarEclipseIAUSingleK ¶

func SolarEclipseIAUSingleK(seedJDE float64) SolarEclipseResult

SolarEclipseIAUSingleK 计算给定近朔时刻附近的一次全局日食，使用 IAU Single-K 模型。

func SolarEclipseNASABulletinSplitK ¶

func SolarEclipseNASABulletinSplitK(seedJDE float64) SolarEclipseResult

SolarEclipseNASABulletinSplitK 计算给定近朔时刻附近的一次全局日食，使用 NASA bulletin Split-K 模型。

type SolarEclipseType ¶

type SolarEclipseType string

SolarEclipseType 表示整场日食的全局食型。

const (
	// SolarEclipseNone 表示该次朔月没有发生日食。
	SolarEclipseNone SolarEclipseType = "none"
	// SolarEclipsePartial 表示日偏食。
	SolarEclipsePartial SolarEclipseType = "partial"
	// SolarEclipseAnnular 表示日环食。
	SolarEclipseAnnular SolarEclipseType = "annular"
	// SolarEclipseTotal 表示日全食。
	SolarEclipseTotal SolarEclipseType = "total"
	// SolarEclipseHybrid 表示全环食/混合食。
	SolarEclipseHybrid SolarEclipseType = "hybrid"
)

type StarCoordinate ¶ added in v0.2.0

type StarCoordinate struct {
	ID string

	RA    float64
	Dec   float64
	Epoch time.Time
	Frame CoordinateFrame

	ProperMotionRACosDecMasPerYear float64
	ProperMotionDecMasPerYear      float64
	ParallaxMas                    float64
}

StarCoordinate 是调用者为恒星提供的星表坐标或视位置坐标。 RA 和 Dec 的单位为度；ProperMotionRACosDecMasPerYear 使用星表常见的 dRA*cos(Dec) 约定，单位为毫角秒/年。 StarCoordinate is a catalog or apparent coordinate supplied for a star. RA and Dec are degrees; ProperMotionRACosDecMasPerYear uses the usual catalog convention of dRA*cos(Dec), in milliarcseconds per year.

func StarCoordinateFromStarData ¶ added in v0.2.0

func StarCoordinateFromStarData(star StarData) (StarCoordinate, error)

StarCoordinateFromStarData 将一条内嵌星表记录转换为月掩搜索使用的 J2000 坐标契约。星表自行从角秒/年转换为毫角秒/年；正的秒差距距离转换为毫角秒年视差。本函数只转换传入值，不会加载星表。 StarCoordinateFromStarData converts one embedded-catalog entry into the J2000 coordinate contract used by lunar-occultation searches. The catalog's proper motions are converted from arcseconds/year to milliarcseconds/year; a positive parsec distance is converted to annual parallax in milliarcseconds. This function only converts the supplied value and never loads the catalog.

func (StarCoordinate) Validate ¶ added in v0.2.0

func (s StarCoordinate) Validate() error

Validate 在构造目标前检查恒星坐标契约。 Validate checks the coordinate contract before a target is constructed.

type StarData ¶

type StarData struct {
	InnerStarData
	ChineseName      string
	ChineseAlias     string
	ChineseBayerName string
	CommonName       string
	CommonAliasName  string
	Cst              string
	CstChinese       string
}

func StarDataByChinese ¶

func StarDataByChinese(name string) (StarData, error)

func StarDataByHR ¶

func StarDataByHR(hr int) (StarData, error)

func (StarData) RaDecByDate ¶

func (s StarData) RaDecByDate(date time.Time) (float64, float64)

type StarOccultationDiagramFrame ¶ added in v0.2.0

type StarOccultationDiagramFrame struct {
	// JDE 是 TT 儒略历书日。
	// JDE is the TT Julian ephemeris day.
	JDE float64
	// StarXArcsec 和 StarYArcsec 是相对月心的切平面偏移，单位为角秒。X 向东为正，Y 向北为正。
	// StarXArcsec and StarYArcsec are tangent-plane offsets from the lunar center. X is positive east and Y is positive north.
	StarXArcsec float64
	StarYArcsec float64
	// MoonRadiusArcsec 是站心月球视半径，单位为角秒。
	// MoonRadiusArcsec is the topocentric apparent lunar semidiameter.
	MoonRadiusArcsec float64
	// SeparationArcsec 和 PositionAngleDeg 描述恒星相对月心的位置。
	// SeparationArcsec and PositionAngleDeg describe the star relative to the lunar center.
	SeparationArcsec float64
	PositionAngleDeg float64
	// MoonAltitudeDeg 和 MoonAzimuthDeg 是站心地平坐标。
	// MoonAltitudeDeg and MoonAzimuthDeg are topocentric horizontal coordinates.
	MoonAltitudeDeg float64
	MoonAzimuthDeg  float64
	// BehindMoon 表示点光源恒星位于月缘内侧。
	// BehindMoon is true while the point-source star lies strictly inside the lunar limb.
	BehindMoon bool
	// Label 是主阶段标识；Labels 在掠掩事件中保留重合阶段。
	// Label is the primary key phase; Labels retains coincident phases for grazing events.
	Label  string
	Labels []string
}

StarOccultationDiagramFrame 描述一个时刻的站心月球与恒星几何。 StarOccultationDiagramFrame describes topocentric Moon-star geometry at one instant.

type StarOccultationDiagramOptions ¶ added in v0.2.0

type StarOccultationDiagramOptions struct {
	// StepDays 是请求的轨迹采样步长，单位为日；非正值或非有限值使用两分钟，正值小于一秒时使用一秒。长事件可能增大实际步长，使基础轨迹不超过 2000 个采样点；必要阶段帧仍会额外保留。结果会报告实际采用的值。
	// StepDays is the requested track sampling step in days. Non-positive or non-finite values use two minutes, and positive values below one second use one second. Long events may increase the effective step to keep the base track within 2000 samples; required phase frames are retained in addition. The result reports the effective value.
	StepDays float64
}

StarOccultationDiagramOptions 控制本地恒星月掩图的轨迹采样。 StarOccultationDiagramOptions controls local stellar-occultation diagram sampling.

type StarOccultationDiagramResult ¶ added in v0.2.0

type StarOccultationDiagramResult struct {
	Occultation StarOccultationInfo
	Frames      []StarOccultationDiagramFrame
	// StepDays 是实际采用的基础轨迹采样步长，单位为日。
	// StepDays is the effective base-track sampling step in days.
	StepDays float64
}

StarOccultationDiagramResult 包含固定地点恒星月掩的几何数据。 StarOccultationDiagramResult contains geometry for a fixed-site stellar occultation.

func StarOccultationDiagram ¶ added in v0.2.0

func StarOccultationDiagram(
	info StarOccultationInfo,
	star StarCoordinate,
	options StarOccultationDiagramOptions,
) StarOccultationDiagramResult

StarOccultationDiagram 为已求解的固定地点恒星月掩计算以月心为原点的切平面轨迹。事件数据无效或不完整时，结果不含帧。 StarOccultationDiagram computes a Moon-centered tangent-plane track for an already solved fixed-site stellar occultation. Invalid or incomplete event data produces a result without frames.

type StarOccultationInfo ¶ added in v0.2.0

type StarOccultationInfo struct {
	TargetID string
	Observer Observer
	Type     OccultationType

	Immersion time.Time
	Greatest  time.Time
	Emersion  time.Time
	// ContactsComplete 表示两个月缘接触时刻均已求解。
	// ContactsComplete is true when both lunar-limb contacts were solved.
	ContactsComplete bool

	MinimumSeparationArcsec float64
	PositionAngleDeg        float64
	MoonSemidiameterArcsec  float64

	MoonAltitudeAtGreatest float64
	MoonAzimuthAtGreatest  float64
	VisibleAtGreatest      bool
}

StarOccultationInfo 描述点光源恒星月掩；掩始和掩终是月缘交点。 StarOccultationInfo describes a point-source stellar occultation. The immersion and emersion times are the Moon-limb crossings.

func FindBestStarOccultations ¶ added in v0.2.0

func FindBestStarOccultations(start, end time.Time, star StarCoordinate, options OccultationSearchOptions) ([]StarOccultationInfo, error)

FindBestStarOccultations 返回窗口内每次恒星月掩在地球上的全球几何掩甚点。返回的 StarOccultationInfo.Observer 是海平面大地测量位置，由月掩几何选择，不使用地平线或可见性评分。

地心数据只用于月周期搜索初值；最终点是与 FindStarOccultationPaths 一致的标准全球掩甚路径点，然后在该处重新进行站心接触和可见性计算。查询端点 10 ms 内的掩甚时刻也会包含，与数值根精度一致。 FindBestStarOccultations returns the global geometric greatest point on Earth for each stellar occultation in the window. The returned StarOccultationInfo.Observer is the geodetic location at sea level; it is selected from the occultation geometry, without a horizon or visibility score. Geocentric data only seeds each lunar-month search. The final point is the canonical global greatest-path point, matching FindStarOccultationPaths; event contacts and visibility are then recomputed topocentrically there. A greatest instant within 10 ms of either query endpoint is included, matching the numerical root precision.

func FindStarOccultations ¶ added in v0.2.0

func FindStarOccultations(start, end time.Time, star StarCoordinate, longitude, latitude, height float64,
	options OccultationSearchOptions) ([]StarOccultationInfo, error)

FindStarOccultations 搜索单颗点源恒星的月掩星。

输入坐标会从历元传播并转换到当日视坐标系；若提供视差，还会修正观测者的恒星视差。搜索不会加载内嵌 9100 星表；需要全星表搜索时，调用者必须显式加载并选择恒星。经度东为正、纬度北为正，单位为度；高度为平均海平面以上米数。 FindStarOccultations searches for lunar occultations of one point-source star. The input coordinate is propagated from its epoch, converted to the apparent frame of date, and corrected for the observer's stellar parallax when one is supplied. The search does not load the embedded 9100-star catalog; callers that need a catalog-wide search must load and select stars explicitly. Longitude is east-positive in degrees, latitude is north-positive in degrees, and height is the observer elevation above mean sea level in meters.

type StarOccultationPath ¶ added in v0.2.0

type StarOccultationPath struct {
	TargetID string

	Start    OccultationPathPoint
	Greatest OccultationPathPoint
	End      OccultationPathPoint
	// Complete 表示 Start 和 End 是全球月缘外接触点，而不是查询窗口裁剪点。
	// Complete is true when Start and End are the global outer-limb contacts rather than query-window clipping points.
	Complete bool

	CenterLine    []OccultationPathPoint
	NorthernLimit []OccultationPathPoint
	SouthernLimit []OccultationPathPoint

	Step            time.Duration
	TargetSpacingKM float64
}

StarOccultationPath 包含点光源恒星月掩的全球掩带。中心线是月心与恒星对齐的轨迹；NorthernLimit 和 SouthernLimit 是中心线两侧采样的月缘外边界。 StarOccultationPath contains the global footprint of a point-source stellar occultation. The center line is the locus where the lunar center aligns with the star; NorthernLimit and SouthernLimit are the two outer lunar-limb boundaries sampled beside that line.

func FindStarOccultationPaths ¶ added in v0.2.0

func FindStarOccultationPaths(start, end time.Time, star StarCoordinate, options OccultationPathOptions) ([]StarOccultationPath, error)

FindStarOccultationPaths 搜索单颗点源恒星月掩的全球掩带。查询窗口按全球几何掩甚点选择事件，端点容差为 10 ms，与数值根精度一致。返回路径扩展到完整全球起止点；函数不会加载内嵌星表，调用者需显式提供坐标。 FindStarOccultationPaths searches the global lunar-occultation footprint of one point-source star. The query window selects events by global geometric greatest, with a 10 ms endpoint tolerance matching the numerical root precision. Each returned path expands to its complete global start and end; the function does not load the embedded catalog.

type SunPhysicalInfo ¶

type SunPhysicalInfo struct {
	// P 太阳北极位置角，单位度 / position angle of the solar north pole in degrees.
	P float64
	// B0 日面中心太阳纬度，单位度 / heliographic latitude of the disk center in degrees.
	B0 float64
	// L0 日面中心卡林顿经度，单位度 / Carrington heliographic longitude of the disk center in degrees.
	L0 float64
}

SunPhysicalInfo 太阳物理观测参数 / physical observing parameters of the Sun.

func SunPhysical ¶

func SunPhysical(jd float64) SunPhysicalInfo

SunPhysical 太阳物理观测参数 / physical observing parameters of the Sun.

func SunPhysicalN ¶

func SunPhysicalN(jd float64, n int) SunPhysicalInfo

SunPhysicalN 太阳物理观测参数（截断版） / truncated physical observing parameters of the Sun.

type Vector3 ¶

type Vector3 [3]float64

三维向量

func OrbitAstrometricGeocentricXYZJ2000 ¶

func OrbitAstrometricGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3

OrbitAstrometricGeocentricXYZJ2000 返回光行时修正后的地心 J2000 平黄道直角坐标，单位 AU。

func OrbitGeocentricXYZ ¶

func OrbitGeocentricXYZ(jd float64, elements OrbitElements) Vector3

OrbitGeocentricXYZ 返回地心历元黄道直角坐标，单位 AU。

func OrbitGeocentricXYZJ2000 ¶

func OrbitGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3

OrbitGeocentricXYZJ2000 返回地心 J2000 平黄道直角坐标，单位 AU。

func OrbitHeliocentricXYZ ¶

func OrbitHeliocentricXYZ(jd float64, elements OrbitElements) Vector3

OrbitHeliocentricXYZ 返回日心历元黄道直角坐标，单位 AU。

func OrbitHeliocentricXYZJ2000 ¶

func OrbitHeliocentricXYZJ2000(jd float64, elements OrbitElements) Vector3

OrbitHeliocentricXYZJ2000 返回日心 J2000 平黄道直角坐标，单位 AU。

Source Files ¶

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