feat: 完善时标与天象几何计算并扩展输出接口

- 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:
2026-09-23 18:55:12 +08:00
parent 1f31a9b5b5
commit 16c62a97d5
503 changed files with 33290 additions and 9471 deletions
+27 -16
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@@ -1,6 +1,7 @@
package moon
import (
"b612.me/astro/internal/civiltime"
"errors"
"math"
"time"
@@ -18,50 +19,50 @@ var (
// TrueLo 轻量真黄经 / lightweight true ecliptic longitude.
func TrueLo(date time.Time) float64 {
return lite.MoonGeocentric(basic.Date2JDE(date.UTC())).Longitude
return lite.MoonGeocentric(basic.Date2JD(date.UTC())).Longitude
}
// TrueBo 轻量真黄纬 / lightweight true ecliptic latitude.
func TrueBo(date time.Time) float64 {
return lite.MoonGeocentric(basic.Date2JDE(date.UTC())).Latitude
return lite.MoonGeocentric(basic.Date2JD(date.UTC())).Latitude
}
// TrueRa 轻量真赤经 / lightweight true right ascension.
func TrueRa(date time.Time) float64 {
return lite.MoonGeocentric(basic.Date2JDE(date.UTC())).RightAscension
return lite.MoonGeocentric(basic.Date2JD(date.UTC())).RightAscension
}
// TrueDec 轻量真赤纬 / lightweight true declination.
func TrueDec(date time.Time) float64 {
return lite.MoonGeocentric(basic.Date2JDE(date.UTC())).Declination
return lite.MoonGeocentric(basic.Date2JD(date.UTC())).Declination
}
// TrueRaDec 轻量真赤经、真赤纬 / lightweight true right ascension and declination.
func TrueRaDec(date time.Time) (float64, float64) {
state := lite.MoonGeocentric(basic.Date2JDE(date.UTC()))
state := lite.MoonGeocentric(basic.Date2JD(date.UTC()))
return state.RightAscension, state.Declination
}
// ApparentRa 轻量站心视赤经 / lightweight topocentric apparent right ascension.
func ApparentRa(date time.Time, lon, lat float64) float64 {
state := lite.MoonTopocentric(basic.Date2JDE(date.UTC()), lon, lat, 0)
state := lite.MoonTopocentric(basic.Date2JD(date.UTC()), lon, lat, 0)
return state.RightAscension
}
// ApparentDec 轻量站心视赤纬 / lightweight topocentric apparent declination.
func ApparentDec(date time.Time, lon, lat float64) float64 {
state := lite.MoonTopocentric(basic.Date2JDE(date.UTC()), lon, lat, 0)
state := lite.MoonTopocentric(basic.Date2JD(date.UTC()), lon, lat, 0)
return state.Declination
}
// ApparentRaDec 轻量站心视赤经、视赤纬 / lightweight topocentric apparent right ascension and declination.
func ApparentRaDec(date time.Time, lon, lat float64) (float64, float64) {
state := lite.MoonTopocentric(basic.Date2JDE(date.UTC()), lon, lat, 0)
state := lite.MoonTopocentric(basic.Date2JD(date.UTC()), lon, lat, 0)
return state.RightAscension, state.Declination
}
func topocentricHorizontal(date time.Time, lon, lat float64) (altitude, azimuth, hourAngle float64) {
jd := basic.Date2JDE(date.UTC())
jd := basic.Date2JD(date.UTC())
state := lite.MoonTopocentric(jd, lon, lat, 0)
return lite.HorizontalCoordinates(state.RightAscension, state.Declination, jd, lon, lat)
}
@@ -92,8 +93,8 @@ func Zenith(date time.Time, lon, lat float64) float64 {
// SunMoonLoDiff 轻量日月黄经差 / lightweight Moon-Sun ecliptic-longitude difference.
func SunMoonLoDiff(date time.Time) float64 {
jd := basic.Date2JDE(date.UTC())
return Limit360(lite.MoonGeocentric(jd).Longitude - lite.SunApparentLo(jd))
jdUTC := basic.Date2JD(date.UTC())
return Limit360(lite.MoonGeocentric(jdUTC).Longitude - lite.SunApparentLo(jdUTC))
}
// PhaseAge 轻量月龄 / lightweight lunar age in days.
@@ -108,26 +109,36 @@ func Phase(date time.Time) float64 {
// RiseTime 轻量月出时刻 / lightweight moonrise time.
func RiseTime(date time.Time, lon, lat, height float64, aero bool) (time.Time, error) {
if result, err, handled := civiltime.Event(date, ERR_NOT_TODAY, func(d time.Time) (time.Time, error) {
return RiseTime(d, lon, lat, height, aero)
}); handled {
return result, err
}
return riseSetTime(date, lon, lat, height, aero, true)
}
// SetTime 轻量月落时刻 / lightweight moonset time.
func SetTime(date time.Time, lon, lat, height float64, aero bool) (time.Time, error) {
if result, err, handled := civiltime.Event(date, ERR_NOT_TODAY, func(d time.Time) (time.Time, error) {
return SetTime(d, lon, lat, height, aero)
}); handled {
return result, err
}
return riseSetTime(date, lon, lat, height, aero, false)
}
func riseSetTime(date time.Time, lon, lat, height float64, aero, isRise bool) (time.Time, error) {
localMidnight := time.Date(date.Year(), date.Month(), date.Day(), 0, 0, 0, 0, date.Location())
localJD := basic.Date2JDE(localMidnight)
localJD := basic.Date2JD(localMidnight)
_, offset := localMidnight.Zone()
timezone := float64(offset) / 3600.0
horizonDip := basic.HeightDegreeByLat(height, lat)
altitudeFn := func(localJD float64) float64 {
utJD := localJD - timezone/24.0
state := lite.MoonTopocentric(utJD, lon, lat, height)
altitude, _, _ := lite.HorizontalCoordinates(state.RightAscension, state.Declination, utJD, lon, lat)
utcJD := localJD - timezone/24.0
state := lite.MoonTopocentric(utcJD, lon, lat, height)
altitude, _, _ := lite.HorizontalCoordinates(state.RightAscension, state.Declination, utcJD, lon, lat)
residual := altitude + horizonDip
if aero {
residual += basic.RefractionFromTrueAltitude(altitude, 1010, 10)
@@ -149,7 +160,7 @@ func riseSetTime(date time.Time, lon, lat, height float64, aero, isRise bool) (t
return time.Time{}, err
}
}
return basic.JDE2DateByZone(eventJD, date.Location(), true), nil
return basic.JD2DateByZone(eventJD-timezone/24, date.Location(), false), nil
}
func liteMoonSemidiameterDegrees(distanceEarthRadii float64) float64 {
+1 -1
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@@ -156,7 +156,7 @@ func TestHorizontalEntriesMatchDuplicatedEvaluation(t *testing.T) {
}
for _, s := range samples {
jd := basic.Date2JDE(s.date.UTC())
jd := basic.Date2JD(s.date.UTC())
altitude, azimuth, hourAngle := lite.HorizontalCoordinates(ApparentRa(s.date, s.lon, s.lat), ApparentDec(s.date, s.lon, s.lat), jd, s.lon, s.lat)
checks := []struct {
name string
+1 -1
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@@ -60,7 +60,7 @@ func BenchmarkMoonZenith(b *testing.B) {
func BenchmarkMoonHorizontalLegacy(b *testing.B) {
date, lon, lat := benchmarkHorizontalInputs()
jd := basic.Date2JDE(date.UTC())
jd := basic.Date2JD(date.UTC())
entries := []struct {
name string
pick func(altitude, azimuth, hourAngle float64) float64