b612
044f2f4381
- 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
192 lines
6.7 KiB
Go
192 lines
6.7 KiB
Go
package basic
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import (
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"math"
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"b612.me/astro/planet"
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. "b612.me/astro/tools"
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)
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func MarsL(jde float64) float64 {
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return planet.WherePlanet(3, 0, jde)
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}
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func MarsB(jde float64) float64 {
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return planet.WherePlanet(3, 1, jde)
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}
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func MarsR(jde float64) float64 {
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return planet.WherePlanet(3, 2, jde)
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}
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func AMarsX(jde float64) float64 {
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l := MarsL(jde)
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b := MarsB(jde)
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r := MarsR(jde)
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el := planet.WherePlanet(-1, 0, jde)
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eb := planet.WherePlanet(-1, 1, jde)
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er := planet.WherePlanet(-1, 2, jde)
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x := r*Cos(b)*Cos(l) - er*Cos(eb)*Cos(el)
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return x
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}
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func AMarsY(jde float64) float64 {
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l := MarsL(jde)
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b := MarsB(jde)
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r := MarsR(jde)
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el := planet.WherePlanet(-1, 0, jde)
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eb := planet.WherePlanet(-1, 1, jde)
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er := planet.WherePlanet(-1, 2, jde)
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y := r*Cos(b)*Sin(l) - er*Cos(eb)*Sin(el)
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return y
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}
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func AMarsZ(jde float64) float64 {
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//l := MarsL(jde)
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b := MarsB(jde)
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r := MarsR(jde)
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// el := planet.WherePlanet(-1, 0, jde)
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eb := planet.WherePlanet(-1, 1, jde)
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er := planet.WherePlanet(-1, 2, jde)
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z := r*Sin(b) - er*Sin(eb)
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return z
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}
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func AMarsXYZ(jde float64) (float64, float64, float64) {
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l := MarsL(jde)
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b := MarsB(jde)
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r := MarsR(jde)
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el := planet.WherePlanet(-1, 0, jde)
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eb := planet.WherePlanet(-1, 1, jde)
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er := planet.WherePlanet(-1, 2, jde)
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x := r*Cos(b)*Cos(l) - er*Cos(eb)*Cos(el)
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y := r*Cos(b)*Sin(l) - er*Cos(eb)*Sin(el)
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z := r*Sin(b) - er*Sin(eb)
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return x, y, z
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}
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func MarsApparentRa(jde float64) float64 {
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lo, bo := MarsApparentLoBo(jde)
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eps := TrueObliquity(jde)
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ra := math.Atan2((Sin(lo)*Cos(eps) - Tan(bo)*Sin(eps)), Cos(lo))
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ra = ra * 180 / math.Pi
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return Limit360(ra)
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}
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func MarsApparentDec(jde float64) float64 {
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lo, bo := MarsApparentLoBo(jde)
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eps := TrueObliquity(jde)
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dec := ArcSin(Sin(bo)*Cos(eps) + Cos(bo)*Sin(eps)*Sin(lo))
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return dec
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}
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func MarsApparentRaDec(jde float64) (float64, float64) {
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lo, bo := MarsApparentLoBo(jde)
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eps := TrueObliquity(jde)
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ra := math.Atan2((Sin(lo)*Cos(eps) - Tan(bo)*Sin(eps)), Cos(lo))
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ra = ra * 180 / math.Pi
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dec := ArcSin(Sin(bo)*Cos(eps) + Cos(bo)*Sin(eps)*Sin(lo))
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return Limit360(ra), dec
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}
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func EarthMarsAway(jd float64) float64 {
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return planetEarthAwayExplicitN(3, jd, -1)
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}
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func MarsApparentLo(jd float64) float64 {
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geo, _ := planetApparentGeocentricPositionN(3, jd, -1)
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return geo.lo
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}
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func MarsApparentBo(jd float64) float64 {
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geo, _ := planetApparentGeocentricPositionN(3, jd, -1)
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return geo.bo
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}
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func MarsApparentLoBo(jd float64) (float64, float64) {
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geo, _ := planetApparentGeocentricPositionN(3, jd, -1)
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return geo.lo, geo.bo
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}
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func MarsTrueLoBo(jd float64) (float64, float64) {
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geo, _ := planetTrueGeocentricPositionN(3, jd, -1)
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return geo.lo, geo.bo
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}
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func MarsTrueLo(jd float64) float64 {
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geo, _ := planetTrueGeocentricPositionN(3, jd, -1)
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return geo.lo
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}
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func MarsMag(jde float64) float64 {
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sunDistance := MarsR(jde)
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earthDistance := EarthMarsAway(jde)
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earthSunDistance := planet.WherePlanet(-1, 2, jde)
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i := (sunDistance*sunDistance + earthDistance*earthDistance - earthSunDistance*earthSunDistance) / (2 * sunDistance * earthDistance)
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i = ArcCos(i)
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mag := -1.52 + 5*math.Log10(sunDistance*earthDistance) + 0.016*i
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return FloatRound(mag, 2)
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}
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// MarsHeightWithInstance 用指定星历实例求值；inst 为 nil 时用进程当前模型 / evaluation with an explicit instance; nil uses the process model.
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func MarsHeightWithInstance(localJD, lon, lat, timezone float64, inst *Instance) float64 {
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return planetHeightN(3, localJD, lon, lat, timezone, -1, inst)
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}
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// MarsAzimuthWithInstance 用指定星历实例求值；inst 为 nil 时用进程当前模型 / evaluation with an explicit instance; nil uses the process model.
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func MarsAzimuthWithInstance(localJD, lon, lat, timezone float64, inst *Instance) float64 {
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return planetAzimuthN(3, localJD, lon, lat, timezone, -1, inst)
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}
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// MarsHourAngleWithInstance 用指定星历实例求值；inst 为 nil 时用进程当前模型 / evaluation with an explicit instance; nil uses the process model.
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func MarsHourAngleWithInstance(jd, lon, timezone float64, inst *Instance) float64 {
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siderealLongitude := Limit360(ApparentSiderealTime(UTC2UT1(jd-timezone/24))*15 + lon)
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hourAngle := siderealLongitude - MarsApparentRaWithInstance(UTC2TT(jd-timezone/24.0), inst)
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if hourAngle < 0 {
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hourAngle += 360
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}
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return hourAngle
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}
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// MarsCulminationTimeWithInstance 用指定星历实例求值；inst 为 nil 时用进程当前模型 / evaluation with an explicit instance; nil uses the process model.
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func MarsCulminationTimeWithInstance(localJD, lon, timezone float64, inst *Instance) float64 {
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// localJD 是本地民用日锚点（当地 0 时），不是力学时。
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//ra,dec 瞬时天球座标，非J2000等时间天球坐标
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localJD = math.Floor(localJD) + 0.5
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estimateJD := localJD + Limit360(360-MarsHourAngleWithInstance(localJD, lon, timezone, inst))/15.0/24.0*0.99726851851851851851
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normalizedHourAngle := func(localJD, lon, timezone float64) float64 {
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currentHourAngle := MarsHourAngleWithInstance(localJD, lon, timezone, inst)
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if currentHourAngle < 180 {
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currentHourAngle += 360
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}
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return currentHourAngle
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}
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var ok bool
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estimateJD, ok = eventNewtonRefine(estimateJD, 0.00001, func(prevJD float64) float64 {
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hourAngleDelta := normalizedHourAngle(prevJD, lon, timezone) - 360
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hourAngleSlope := (normalizedHourAngle(prevJD+0.000005, lon, timezone) - normalizedHourAngle(prevJD-0.000005, lon, timezone)) / 0.00001
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return hourAngleDelta / hourAngleSlope
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})
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if !ok {
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return math.NaN()
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}
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return estimateJD
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}
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// MarsRiseTimeWithInstance 用指定星历实例求值；inst 为 nil 时用进程当前模型 / evaluation with an explicit instance; nil uses the process model.
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func MarsRiseTimeWithInstance(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, inst *Instance) (float64, error) {
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return marsRiseDown(jd, lon, lat, timezone, aeroCorrection, observerHeight, true, inst)
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}
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// MarsSetTimeWithInstance 用指定星历实例求值；inst 为 nil 时用进程当前模型 / evaluation with an explicit instance; nil uses the process model.
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func MarsSetTimeWithInstance(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, inst *Instance) (float64, error) {
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return marsRiseDown(jd, lon, lat, timezone, aeroCorrection, observerHeight, false, inst)
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}
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func marsRiseDown(jd, lon, lat, timezone, aeroCorrection, observerHeight float64, isRise bool, instances ...*Instance) (float64, error) {
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inst := instanceValue(instances)
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return planetRiseDown(jd, lon, lat, timezone, aeroCorrection, observerHeight, isRise, func(localJD, lon, timezone float64) float64 {
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return MarsCulminationTimeWithInstance(localJD, lon, timezone, inst)
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}, func(localJD, lon, lat, timezone float64) float64 {
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return MarsHeightWithInstance(localJD, lon, lat, timezone, inst)
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}, func(jde float64) float64 { return MarsApparentDecWithInstance(jde, inst) })
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}
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