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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/coordinate.go
+24 -26
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@@ -86,7 +86,7 @@ func psini(lat, h float64) float64 {
}
func TopocentricRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64) {
return topocentricRaDecWithSidereal(ra, dec, lat, lon, ApparentSiderealTime(jd)*15, au, h)
return topocentricRaDecWithSidereal(ra, dec, lat, lon, ApparentSiderealTime(UTC2UT1(jd))*15, au, h)
}
func topocentricRaDecWithSidereal(ra, dec, lat, lon, siderealDegrees, au, h float64) (float64, float64) {
@@ -109,43 +109,41 @@ func TopocentricDec(ra, dec, lat, lon, jd, au, h float64) float64 { //jd为格
return topocentricDec
}
func TopocentricLo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
c := pcosi(lat, h)
s := psini(lat, h)
sinpi := Sin(0.0024427777777) / au
ra := LoToRa(jd, lo, bo)
tH := Limit360(ApparentSiderealTime(jd)*15 + lon - ra)
n := Cos(lo)*Cos(bo) - c*sinpi*Cos(tH)
nlo := math.Atan2(Sin(lo)*Cos(bo)-sinpi*(s*Sin(TrueObliquity(jd))+c*Cos(TrueObliquity(jd))*Sin(tH)), n) * 180 / math.Pi
// TopocentricLoBo 一次求值给出站心黄经与黄纬 / topocentric ecliptic longitude and latitude in one solve.
//
// 先解站心赤道坐标再转黄道：黄道版公式的分母在黄经 90°–270° 时变号，直接 atan2 会切到对顶象限。
func TopocentricLoBo(lo, bo, lat, lon, jde, au, h float64) (float64, float64) {
ra, dec := LoBoToRaDec(jde, lo, bo)
topRA, topDec := TopocentricRaDec(ra, dec, lat, lon, jde, au, h)
return RaDecToLoBo(jde, topRA, topDec)
}
// TopocentricLo 站心黄经 / topocentric ecliptic longitude.
func TopocentricLo(lo, bo, lat, lon, jde, au, h float64) float64 {
nlo, _ := TopocentricLoBo(lo, bo, lat, lon, jde, au, h)
return nlo
}
func TopocentricBo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
c := pcosi(lat, h)
s := psini(lat, h)
sinpi := Sin(0.0024427777777) / au
ra := LoToRa(jd, lo, bo)
tH := Limit360(ApparentSiderealTime(jd)*15 + lon - ra)
n := Cos(lo)*Cos(bo) - c*sinpi*Cos(tH)
nlo := math.Atan2(Sin(lo)*Cos(bo)-sinpi*(s*Sin(TrueObliquity(jd))+c*Cos(TrueObliquity(jd))*Sin(tH)), n) * 180 / math.Pi
nbo := math.Atan2(Cos(nlo)*(Sin(bo)-sinpi*(s*Cos(TrueObliquity(jd))-c*Sin(TrueObliquity(jd))*Sin(tH))), n) * 180 / math.Pi
// TopocentricBo 站心黄纬 / topocentric ecliptic latitude.
func TopocentricBo(lo, bo, lat, lon, jde, au, h float64) float64 {
_, nbo := TopocentricLoBo(lo, bo, lat, lon, jde, au, h)
return nbo
}
func GXCLo(lo, bo, jd float64) float64 { //光行差修正
func GXCLo(lo, bo, jde float64) float64 { //光行差修正
k := 20.49552
sunlo := SunTrueLo(jd)
e := Earthe(jd)
epi := EarthPI(jd)
sunlo := SunTrueLo(jde)
e := Earthe(jde)
epi := EarthPI(jde)
tmp := (-k*Cos(sunlo-lo) + e*k*Cos(epi-lo)) / Cos(bo)
return tmp
}
func GXCBo(lo, bo, jd float64) float64 {
func GXCBo(lo, bo, jde float64) float64 {
k := 20.49552
sunlo := SunTrueLo(jd)
e := Earthe(jd)
epi := EarthPI(jd)
sunlo := SunTrueLo(jde)
e := Earthe(jde)
epi := EarthPI(jde)
tmp := -k * Sin(bo) * (Sin(sunlo-lo) - e*Sin(epi-lo))
return tmp
}