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feat: 新增月掩与日月食地理绘图并提升观测计算精度

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- 新增月掩恒星和行星：支持搜索、掩甚点、全球掩带及固定地点轨迹计算
- 支持恒星星表坐标转换、有限盘面行星接触事件和月掩 SVG 输出
- 新增日月食及月掩全球投影图、时间标记和 GeoJSON 地理数据接口
- 扩展日食中心线、南北界及偏食足迹采样，支持极区投影
- 修正站心时角、月出月落、月球视半径、折射和恒星自行计算
- 优化内外行星事件搜索、边界选择、极端输入处理和计算稳定性
This commit is contained in:
兔子
2026-08-06 12:00:56 +08:00
parent 25dc7ac0bc
commit 9ee2163cc7
137 changed files with 21770 additions and 1746 deletions
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basic/coordinate.go
+7 -17
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@@ -84,7 +84,7 @@ func TopocentricRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64) {
sinpi := Sin(0.0024427777777) / au
pcosi := pcosi(lat, h)
psini := psini(lat, h)
tH := Limit360(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
tH := Limit360(ApparentSiderealTime(jd)*15 + lon - ra)
nra := math.Atan2(-pcosi*sinpi*Sin(tH), (Cos(dec)-pcosi*sinpi*Cos(tH))) * 180 / math.Pi
ndec := math.Atan2((Sin(dec)-psini*sinpi)*Cos(nra), (Cos(dec)-pcosi*sinpi*Cos(tH))) * 180 / math.Pi
@@ -92,22 +92,12 @@ func TopocentricRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64) {
}
func TopocentricRa(ra, dec, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
sinpi := Sin(0.0024427777777) / au
pcosi := pcosi(lat, h)
tH := Limit360(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
nra := math.Atan2(-pcosi*sinpi*Sin(tH), (Cos(dec)-pcosi*sinpi*Cos(tH))) * 180 / math.Pi
return ra + nra
topocentricRA, _ := TopocentricRaDec(ra, dec, lat, lon, jd, au, h)
return topocentricRA
}
func TopocentricDec(ra, dec, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
sinpi := Sin(0.0024427777777) / au
pcosi := pcosi(lat, h)
psini := psini(lat, h)
tH := Limit360(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
nra := math.Atan2(-pcosi*sinpi*Sin(tH), (Cos(dec)-pcosi*sinpi*Cos(tH))) * 180 / math.Pi
ndec := math.Atan2((Sin(dec)-psini*sinpi)*Cos(nra), (Cos(dec)-pcosi*sinpi*Cos(tH))) * 180 / math.Pi
return ndec
_, topocentricDec := TopocentricRaDec(ra, dec, lat, lon, jd, au, h)
return topocentricDec
}
func TopocentricLo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
@@ -115,7 +105,7 @@ func TopocentricLo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林
s := psini(lat, h)
sinpi := Sin(0.0024427777777) / au
ra := LoToRa(jd, lo, bo)
tH := Limit360(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
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
return nlo
@@ -126,7 +116,7 @@ func TopocentricBo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林
s := psini(lat, h)
sinpi := Sin(0.0024427777777) / au
ra := LoToRa(jd, lo, bo)
tH := Limit360(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
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