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change delta T formula and add planet phenomena function

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This commit is contained in:
兔子
2022-05-16 20:42:15 +08:00
parent bb07e23238
commit 97c017be08
38 changed files with 4700 additions and 779 deletions
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basic/coordinate.go
+56 -24
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@@ -9,8 +9,8 @@ import (
/*
* 坐标变换，黄道转赤道
*/
func LoToRa(lo, bo, jde float64) float64 {
ra := math.Atan2(Sin(lo)*Cos(Sita(jde)-Tan(bo)*Sin(Sita(jde))), Cos(lo))
func LoToRa(jde, lo, bo float64) float64 {
ra := math.Atan2(Sin(lo)*Cos(Sita(jde))-Tan(bo)*Sin(Sita(jde)), Cos(lo))
ra = ra * 180 / math.Pi
if ra < 0 {
ra += 360
@@ -18,11 +18,48 @@ func LoToRa(lo, bo, jde float64) float64 {
return ra
}
func BoToDec(lo, bo, jde float64) float64 {
func BoToDec(jde, lo, bo float64) float64 {
dec := ArcSin(Sin(bo)*Cos(Sita(jde)) + Cos(bo)*Sin(Sita(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))
ra = ra * 180 / math.Pi
if ra < 0 {
ra += 360
}
return ra, dec
}
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))
lo = Limit360(lo * 180 / math.Pi)
return lo, ArcSin(sinBo)
}
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))
lo = Limit360(lo * 180 / math.Pi)
return lo
}
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)
return ArcSin(sinBo)
}
/*
* 赤道坐标岁差变换st end 为JDE时刻
*/
@@ -98,7 +135,7 @@ func ZhanXinLo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林尼
C := pcosi(lat, h)
S := psini(lat, h)
sinpi := Sin(0.0024427777777) / au
ra := LoToRa(lo, bo, jd)
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
@@ -109,7 +146,7 @@ func ZhanXinBo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林尼
C := pcosi(lat, h)
S := psini(lat, h)
sinpi := Sin(0.0024427777777) / au
ra := LoToRa(lo, bo, jd)
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
@@ -117,25 +154,20 @@ func ZhanXinBo(lo, bo, lat, lon, jd, au, h float64) float64 { //jd为格林尼
return nbo
}
/*
func GXCLo(lo,bo,jd float64) float64{ //光行差修正
k:=20.49552;
sunlo:=SunTrueLo(jd);
e:=Earthe(jd);
epi=earth->EarthPI(jd);
tmp=(-k*this->CosR(sunlo-lo)+e*k*this->CosR(epi-lo))/this->CosR(bo);
return tmp;
func GXCLo(lo, bo, jd float64) float64 { //光行差修正
k := 20.49552
sunlo := SunTrueLo(jd)
e := Earthe(jd)
epi := EarthPI(jd)
tmp := (-k*Cos(sunlo-lo) + e*k*Cos(epi-lo)) / Cos(bo)
return tmp
}
public function GXCBo(lo,bo,jd)
{
earth=new Earth();
k=20.49552;
sunlo=earth->SunTrueLo(jd);
e=earth->Earthe(jd);
epi=earth->EarthPI(jd);
tmp=-k*this->SinR(bo)*(this->SinR(sunlo-lo)-e*this->SinR(epi-lo));
return tmp;
func GXCBo(lo, bo, jd float64) float64 {
k := 20.49552
sunlo := SunTrueLo(jd)
e := Earthe(jd)
epi := EarthPI(jd)
tmp := -k * Sin(bo) * (Sin(sunlo-lo) - e*Sin(epi-lo))
return tmp
}
*/