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feat: 完善时标与天象几何计算并扩展输出接口

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- 新增时标、ΔT 模型、质心时间与 UT1 支持
- 改进日月食、月掩、行星事件及路径边界计算
- 完善恒星三维自行与动态距离传播
- 扩展 SVG、GeoJSON、KML 输出与底层距离换算工具
- 整理中英文手册、示例资源及回归测试
This commit is contained in:
兔子
2026-09-23 18:55:12 +08:00
parent 1f31a9b5b5
commit 16c62a97d5
503 changed files with 33290 additions and 9471 deletions
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basic/jupiter_satellites.go
+20 -20
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@@ -35,7 +35,7 @@ type jupiterGalileanL1Term struct {
// 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 (convert a UT query with TD2UT(jd, true)). Returned coordinates are Jovicentric J2000 mean-equatorial position and velocity from the IMCCE L1 theory, in AU and AU/day.
// The input jd is a TT/TDB Julian day (convert a civil query with UTC2TT(jd)). Returned coordinates are Jovicentric J2000 mean-equatorial position and velocity from the IMCCE L1 theory, in AU and AU/day.
type JupiterGalileanState struct {
X float64
Y float64
@@ -97,11 +97,11 @@ func JupiterGalileanSatelliteStates(jd float64) [4]JupiterGalileanState {
//
// 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 JupiterGalileanSatelliteObservation(jd float64, satellite int) JupiterGalileanObservation {
if satellite < 1 || satellite > 4 || !isFinite(jd) {
func JupiterGalileanSatelliteObservation(jde float64, satellite int) JupiterGalileanObservation {
if satellite < 1 || satellite > 4 || !isFinite(jde) {
return invalidJupiterGalileanObservation()
}
context := newJupiterGalileanObservationContext(jd)
context := newJupiterGalileanObservationContext(jde)
return context.observationForSatellite(satellite - 1)
}
@@ -109,9 +109,9 @@ func JupiterGalileanSatelliteObservation(jd float64, satellite int) JupiterGalil
//
// 返回次序固定为 Io、Europa、Ganymede、Callisto。
// The returned order is Io, Europa, Ganymede, Callisto.
func JupiterGalileanSatelliteObservations(jd float64) [4]JupiterGalileanObservation {
func JupiterGalileanSatelliteObservations(jde float64) [4]JupiterGalileanObservation {
var observations [4]JupiterGalileanObservation
context := newJupiterGalileanObservationContext(jd)
context := newJupiterGalileanObservationContext(jde)
for i := range observations {
observations[i] = context.observationForSatellite(i)
}
@@ -141,14 +141,14 @@ type jupiterGalileanObservationContext struct {
bodyZ Vector3
}
func newJupiterGalileanObservationContext(jd float64) jupiterGalileanObservationContext {
context := jupiterGalileanObservationContext{jd: jd}
if !isFinite(jd) {
func newJupiterGalileanObservationContext(jde float64) jupiterGalileanObservationContext {
context := jupiterGalileanObservationContext{jd: jde}
if !isFinite(jde) {
return context
}
context.earthHelioJ2000 = rotateEclipticToEquatorial(earthHeliocentricVectorJ2000(jd), orbitJ2000Obliquity)
context.jupiterGeoJ2000, context.jupiterLightTime = jupiterAstrometricGeocentricVectorJ2000(jd, context.earthHelioJ2000)
context.targetJD = jd - context.jupiterLightTime
context.earthHelioJ2000 = rotateEclipticToEquatorial(earthHeliocentricVectorJ2000(jde), orbitJ2000Obliquity)
context.jupiterGeoJ2000, context.jupiterLightTime = jupiterAstrometricGeocentricVectorJ2000(jde, context.earthHelioJ2000)
context.targetJD = jde - context.jupiterLightTime
context.jupiterDistance = vectorMagnitude(context.jupiterGeoJ2000)
if context.jupiterDistance == 0 {
return context
@@ -220,9 +220,9 @@ func jupiterGalileanSatelliteAstrometricGeocentric(index int, jd, initialLightTi
result := Vector3{}
includeSolarLongPeriod := jupiterGalileanUseSolarLongPeriod(jd)
for i := 0; i < 8; i++ {
targetJD := jd - lightTime
jupiterHelio := rotateEclipticToEquatorial(jupiterHeliocentricVectorJ2000(targetJD), orbitJ2000Obliquity)
state = jupiterGalileanSatelliteStateAtET(targetJD-jupiterGalileanReferenceJD, index, includeSolarLongPeriod)
targetJDE := jd - lightTime
jupiterHelio := rotateEclipticToEquatorial(jupiterHeliocentricVectorJ2000(targetJDE), orbitJ2000Obliquity)
state = jupiterGalileanSatelliteStateAtET(targetJDE-jupiterGalileanReferenceJD, index, includeSolarLongPeriod)
result = Vector3{
jupiterHelio[0] + state.X - earthHelioJ2000[0],
jupiterHelio[1] + state.Y - earthHelioJ2000[1],
@@ -256,14 +256,14 @@ func jupiterAstrometricGeocentricVectorJ2000(jd float64, earthHelioJ2000 Vector3
return result, lightTime
}
func jupiterHeliocentricVectorJ2000(jd float64) Vector3 {
func jupiterHeliocentricVectorJ2000(jde float64) Vector3 {
return eclipticVectorAtReferenceEpoch(
eclipticCartesian(
planet.WherePlanet(4, 0, jd),
planet.WherePlanet(4, 1, jd),
planet.WherePlanet(4, 2, jd),
planet.WherePlanet(4, 0, jde),
planet.WherePlanet(4, 1, jde),
planet.WherePlanet(4, 2, jde),
),
jd,
jde,
orbitReferenceJD,
)
}