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feat: 扩展天文计算能力

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- 新增日食、月食、本地可见性、中心线、半影区域、SVG 图示与沙罗周期信息
- 新增行星冲合、留、方照、物理星历、视直径、相位、亮肢角、轨道节点等计算
- 新增木星伽利略卫星位置、现象与接触事件计算
- 新增恒星星表、星座判定、自行修正与观测辅助能力
- 新增 coord、formula、orbit、sundial、lite/sun、lite/moon 等扩展包
- 完善农历年号、月相英文别名、视差角、大气质量、折射、日晷与双星计算
- 增加 NASA、JPL Horizons、IMCCE 等回归测试数据与基线测试
- 重构基础算法文件组织，补充大量公开 API 注释和语义回归测试
- 更新中文和英文 README，补充示例、精度说明、SVG 配图
This commit is contained in:
兔子
2026-05-01 22:38:44 +08:00
parent 98ff574495
commit 3ffdbe0034
365 changed files with 63589 additions and 17508 deletions
Download Patch File Download Diff File Expand all files Collapse all files
basic/coordinate.go
+25 -25
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@@ -10,7 +10,7 @@ import (
* 坐标变换，黄道转赤道
*/
func LoToRa(jde, lo, bo float64) float64 {
ra := math.Atan2(Sin(lo)*Cos(Sita(jde))-Tan(bo)*Sin(Sita(jde)), Cos(lo))
ra := math.Atan2(Sin(lo)*Cos(TrueObliquity(jde))-Tan(bo)*Sin(TrueObliquity(jde)), Cos(lo))
ra = ra * 180 / math.Pi
if ra < 0 {
ra += 360
@@ -19,13 +19,13 @@ func LoToRa(jde, lo, bo float64) float64 {
}
func BoToDec(jde, lo, bo float64) float64 {
dec := ArcSin(Sin(bo)*Cos(Sita(jde)) + Cos(bo)*Sin(Sita(jde))*Sin(lo))
dec := ArcSin(Sin(bo)*Cos(TrueObliquity(jde)) + Cos(bo)*Sin(TrueObliquity(jde))*Sin(lo))
return dec
}
func LoBoToRaDec(jde, lo, bo float64) (float64, float64) {
dec := ArcSin(Sin(bo)*Cos(Sita(jde)) + Cos(bo)*Sin(Sita(jde))*Sin(lo))
ra := math.Atan2(Sin(lo)*Cos(Sita(jde))-Tan(bo)*Sin(Sita(jde)), Cos(lo))
dec := ArcSin(Sin(bo)*Cos(TrueObliquity(jde)) + Cos(bo)*Sin(TrueObliquity(jde))*Sin(lo))
ra := math.Atan2(Sin(lo)*Cos(TrueObliquity(jde))-Tan(bo)*Sin(TrueObliquity(jde)), Cos(lo))
ra = ra * 180 / math.Pi
if ra < 0 {
ra += 360
@@ -36,9 +36,9 @@ func LoBoToRaDec(jde, lo, bo float64) (float64, float64) {
func RaDecToLoBo(jde, ra, dec float64) (float64, float64) {
//tan(λ) = (sin(α)*cos(ε) + tan(δ)*sin(ε)) / cos(α)
//sin(β)=sin(δ)*cos(ε)-cos(δ)*sin(ε)*sin(α)
sita := Sita(jde)
sinBo := Sin(dec)*Cos(sita) - Cos(dec)*Sin(sita)*Sin(ra)
lo := math.Atan2((Sin(ra)*Cos(sita) + Tan(dec)*Sin(sita)), Cos(ra))
eps := TrueObliquity(jde)
sinBo := Sin(dec)*Cos(eps) - Cos(dec)*Sin(eps)*Sin(ra)
lo := math.Atan2((Sin(ra)*Cos(eps) + Tan(dec)*Sin(eps)), Cos(ra))
lo = Limit360(lo * 180 / math.Pi)
return lo, ArcSin(sinBo)
}
@@ -46,8 +46,8 @@ func RaDecToLoBo(jde, ra, dec float64) (float64, float64) {
func RaToLo(jde, ra, dec float64) float64 {
//tan(λ) = (sin(α)*cos(ε) + tan(δ)*sin(ε)) / cos(α)
//sin(β)=sin(δ)*cos(ε)-cos(δ)*sin(ε)*sin(α)
sita := Sita(jde)
lo := math.Atan2((Sin(ra)*Cos(sita) + Tan(dec)*Sin(sita)), Cos(ra))
eps := TrueObliquity(jde)
lo := math.Atan2((Sin(ra)*Cos(eps) + Tan(dec)*Sin(eps)), Cos(ra))
lo = Limit360(lo * 180 / math.Pi)
return lo
}
@@ -55,8 +55,8 @@ func RaToLo(jde, ra, dec float64) float64 {
func DecToBo(jde, ra, dec float64) float64 {
//tan(λ) = (sin(α)*cos(ε) + tan(δ)*sin(ε)) / cos(α)
//sin(β)=sin(δ)*cos(ε)-cos(δ)*sin(ε)*sin(α)
sita := Sita(jde)
sinBo := Sin(dec)*Cos(sita) - Cos(dec)*Sin(sita)*Sin(ra)
eps := TrueObliquity(jde)
sinBo := Sin(dec)*Cos(eps) - Cos(dec)*Sin(eps)*Sin(ra)
return ArcSin(sinBo)
}
@@ -80,7 +80,7 @@ func psini(lat, h float64) float64 {
return psin
}
func ZhanXinRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64) {
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)
@@ -91,14 +91,14 @@ func ZhanXinRaDec(ra, dec, lat, lon, jd, au, h float64) (float64, float64) {
return ra + nra, ndec
}
func ZhanXinRa(ra, dec, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
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
}
func ZhanXinDec(ra, dec, lat, lon, jd, au, h float64) float64 { //jd为格林尼治标准时
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)
@@ -110,26 +110,26 @@ func ZhanXinDec(ra, dec, lat, lon, jd, au, h float64) float64 { //jd为格林尼
return ndec
}
func ZhanXinLo(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)
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(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
N := Cos(lo)*Cos(bo) - C*sinpi*Cos(tH)
nlo := math.Atan2(Sin(lo)*Cos(bo)-sinpi*(S*Sin(Sita(jd))+C*Cos(Sita(jd))*Sin(tH)), N) * 180 / math.Pi
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
}
func ZhanXinBo(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)
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(TD2UT(ApparentSiderealTime(jd), false)*15 + lon - ra)
N := Cos(lo)*Cos(bo) - C*sinpi*Cos(tH)
nlo := math.Atan2(Sin(lo)*Cos(bo)-sinpi*(S*Sin(Sita(jd))+C*Cos(Sita(jd))*Sin(tH)), N) * 180 / math.Pi
nbo := math.Atan2(Cos(nlo)*(Sin(bo)-sinpi*(S*Cos(Sita(jd))-C*Sin(Sita(jd))*Sin(tH))), N) * 180 / math.Pi
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
return nbo
}