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更换岁差、章动算法

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兔子
2025-09-18 13:16:04 +08:00
parent 9f688024e8
commit 543abcafa5
23 changed files with 1215 additions and 339 deletions
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sun/sun.go
+25 -7
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@@ -107,7 +107,7 @@ func MorningTwilight(date time.Time, lon, lat, angle float64) (time.Time, error)
jde := basic.Date2JDE(date)
_, loc := date.Zone()
timezone := float64(loc) / 3600.0
calcJde := basic.GetAsaTime(jde, lon, lat, timezone, angle)
calcJde := basic.MorningTwilight(jde, lon, lat, timezone, angle)
if calcJde == -2 {
err = ERR_TWILIGHT_NOT_EXISTS
}
@@ -131,7 +131,7 @@ func EveningTwilight(date time.Time, lon, lat, angle float64) (time.Time, error)
_, loc := date.Zone()
timezone := float64(loc) / 3600.0
//不需要进行力学时转换，会在GetBanTime中转换
calcJde := basic.GetBanTime(jde, lon, lat, timezone, angle)
calcJde := basic.EveningTwilight(jde, lon, lat, timezone, angle)
if calcJde == -2 {
err = ERR_TWILIGHT_NOT_EXISTS
}
@@ -152,22 +152,40 @@ func EclipticObliquity(date time.Time, nutation bool) float64 {
return basic.EclipticObliquity(jde, nutation)
}
// EclipticNutation 黄经章动
// EclipticNutation 黄经章动(2000b)
// 返回date对应UTC世界时的黄经章动
func EclipticNutation(date time.Time) float64 {
//转换为UTC时间
jde := basic.Date2JDE(date.UTC())
//进行力学时转换与章动计算
return basic.HJZD(basic.TD2UT(jde, true))
return basic.Nutation2000Bi(basic.TD2UT(jde, true))
}
// AxialtiltNutation 交角章动
// EclipticNutation1980 黄经章动(iau 1980)
// 返回date对应UTC世界时的黄经章动
func EclipticNutation1980(date time.Time) float64 {
//转换为UTC时间
jde := basic.Date2JDE(date.UTC())
//进行力学时转换与章动计算
return basic.Nutation2000Bi(basic.TD2UT(jde, true))
}
// AxialtiltNutation 交角章动(2000b)
// 返回date对应UTC世界时的交角章动
func AxialtiltNutation(date time.Time) float64 {
//转换为UTC时间
jde := basic.Date2JDE(date.UTC())
//进行力学时转换与章动计算
return basic.JJZD(basic.TD2UT(jde, true))
return basic.Nutation2000Bs(basic.TD2UT(jde, true))
}
// AxialtiltNutation1980 交角章动(1980)
// 返回date对应UTC世界时的交角章动
func AxialtiltNutation1980(date time.Time) float64 {
//转换为UTC时间
jde := basic.Date2JDE(date.UTC())
//进行力学时转换与章动计算
return basic.Nutation1980s(basic.TD2UT(jde, true))
}
// GeometricLo 太阳几何黄经
@@ -274,7 +292,7 @@ func CulminationTime(date time.Time, lon float64) time.Time {
jde := basic.Date2JDE(date.Add(time.Duration(-1*date.Hour())*time.Hour)) + 0.5
_, loc := date.Zone()
timezone := float64(loc) / 3600.0
calcJde := basic.GetSunTZTime(jde, lon, timezone) - timezone/24.00
calcJde := basic.CulminationTime(jde, lon, timezone) - timezone/24.00
return basic.JDE2DateByZone(calcJde, date.Location(), false)
}