feat: 引入可切换星历模型并扩展天象观测链路
- 新增半解析、旧模型、自定义与多源堆叠星历实例,提供 Context、Instance、SPK 读取及状态与视位置计算 - 统一太阳、月球和行星实例接口,扩展黄经穿越、留、相位、最近角距、偕日可见、任意高度升落、轨道节点及凌日等天象查询 - 完善日月食、月掩与凌日的月缘剖面、有限盘面接触、站心修正、局地可见性、全球路径和地图输出 - 新增 SVG、GeoJSON、KML 天象输出及凌日、月掩和月缘地形相关缓存与几何求解 - 新增恒星星表导入与查询,支持 CSV、Hipparcos、BSC5、Stellarium 等格式及名称、交叉标识、锥面检索和星等过滤 - 补充 IAU 2006、地球定向、折射消光、大气观测、轨道传播及半解析行星/月球数据支持 - 将默认未来民用时标切换为 TimeScaleLeapHour,更新 2027–2400 农历速查表、中文日期解析和时区边界处理 - 增加事件基线、跨模型回归、几何边界、月缘地形和输出契约测试,完善中英文手册、示例资源、NOTICE 与忽略规则
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+14
-15
@@ -6,7 +6,6 @@ import (
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"math"
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"time"
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"b612.me/astro/basic"
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lite "b612.me/astro/lite/internal"
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. "b612.me/astro/tools"
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)
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@@ -19,50 +18,50 @@ var (
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// TrueLo 轻量真黄经 / lightweight true ecliptic longitude.
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func TrueLo(date time.Time) float64 {
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return lite.MoonGeocentric(basic.Date2JD(date.UTC())).Longitude
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return lite.MoonGeocentric(lite.Date2JD(date.UTC())).Longitude
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}
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// TrueBo 轻量真黄纬 / lightweight true ecliptic latitude.
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func TrueBo(date time.Time) float64 {
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return lite.MoonGeocentric(basic.Date2JD(date.UTC())).Latitude
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return lite.MoonGeocentric(lite.Date2JD(date.UTC())).Latitude
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}
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// TrueRa 轻量真赤经 / lightweight true right ascension.
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func TrueRa(date time.Time) float64 {
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return lite.MoonGeocentric(basic.Date2JD(date.UTC())).RightAscension
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return lite.MoonGeocentric(lite.Date2JD(date.UTC())).RightAscension
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}
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// TrueDec 轻量真赤纬 / lightweight true declination.
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func TrueDec(date time.Time) float64 {
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return lite.MoonGeocentric(basic.Date2JD(date.UTC())).Declination
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return lite.MoonGeocentric(lite.Date2JD(date.UTC())).Declination
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}
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// TrueRaDec 轻量真赤经、真赤纬 / lightweight true right ascension and declination.
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func TrueRaDec(date time.Time) (float64, float64) {
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state := lite.MoonGeocentric(basic.Date2JD(date.UTC()))
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state := lite.MoonGeocentric(lite.Date2JD(date.UTC()))
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return state.RightAscension, state.Declination
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}
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// ApparentRa 轻量站心视赤经 / lightweight topocentric apparent right ascension.
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func ApparentRa(date time.Time, lon, lat float64) float64 {
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state := lite.MoonTopocentric(basic.Date2JD(date.UTC()), lon, lat, 0)
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state := lite.MoonTopocentric(lite.Date2JD(date.UTC()), lon, lat, 0)
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return state.RightAscension
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}
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// ApparentDec 轻量站心视赤纬 / lightweight topocentric apparent declination.
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func ApparentDec(date time.Time, lon, lat float64) float64 {
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state := lite.MoonTopocentric(basic.Date2JD(date.UTC()), lon, lat, 0)
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state := lite.MoonTopocentric(lite.Date2JD(date.UTC()), lon, lat, 0)
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return state.Declination
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}
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// ApparentRaDec 轻量站心视赤经、视赤纬 / lightweight topocentric apparent right ascension and declination.
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func ApparentRaDec(date time.Time, lon, lat float64) (float64, float64) {
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state := lite.MoonTopocentric(basic.Date2JD(date.UTC()), lon, lat, 0)
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state := lite.MoonTopocentric(lite.Date2JD(date.UTC()), lon, lat, 0)
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return state.RightAscension, state.Declination
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}
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func topocentricHorizontal(date time.Time, lon, lat float64) (altitude, azimuth, hourAngle float64) {
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jd := basic.Date2JD(date.UTC())
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jd := lite.Date2JD(date.UTC())
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state := lite.MoonTopocentric(jd, lon, lat, 0)
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return lite.HorizontalCoordinates(state.RightAscension, state.Declination, jd, lon, lat)
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}
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@@ -93,7 +92,7 @@ func Zenith(date time.Time, lon, lat float64) float64 {
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// SunMoonLoDiff 轻量日月黄经差 / lightweight Moon-Sun ecliptic-longitude difference.
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func SunMoonLoDiff(date time.Time) float64 {
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jdUTC := basic.Date2JD(date.UTC())
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jdUTC := lite.Date2JD(date.UTC())
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return Limit360(lite.MoonGeocentric(jdUTC).Longitude - lite.SunApparentLo(jdUTC))
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}
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@@ -129,11 +128,11 @@ func SetTime(date time.Time, lon, lat, height float64, aero bool) (time.Time, er
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func riseSetTime(date time.Time, lon, lat, height float64, aero, isRise bool) (time.Time, error) {
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localMidnight := time.Date(date.Year(), date.Month(), date.Day(), 0, 0, 0, 0, date.Location())
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localJD := basic.Date2JD(localMidnight)
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localJD := lite.Date2JD(localMidnight)
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_, offset := localMidnight.Zone()
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timezone := float64(offset) / 3600.0
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horizonDip := basic.HeightDegreeByLat(height, lat)
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horizonDip := lite.HeightDegreeByLat(height, lat)
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altitudeFn := func(localJD float64) float64 {
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utcJD := localJD - timezone/24.0
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@@ -141,7 +140,7 @@ func riseSetTime(date time.Time, lon, lat, height float64, aero, isRise bool) (t
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altitude, _, _ := lite.HorizontalCoordinates(state.RightAscension, state.Declination, utcJD, lon, lat)
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residual := altitude + horizonDip
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if aero {
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residual += basic.RefractionFromTrueAltitude(altitude, 1010, 10)
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residual += lite.RefractionFromTrueAltitude(altitude, 1010, 10)
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residual += liteMoonSemidiameterDegrees(state.DistanceEarthRadii)
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}
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return residual
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@@ -160,7 +159,7 @@ func riseSetTime(date time.Time, lon, lat, height float64, aero, isRise bool) (t
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return time.Time{}, err
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}
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}
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return basic.JD2DateByZone(eventJD-timezone/24, date.Location(), false), nil
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return lite.JD2DateByZone(eventJD-timezone/24, date.Location(), false), nil
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}
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func liteMoonSemidiameterDegrees(distanceEarthRadii float64) float64 {
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