starainrt
3ffdbe0034
- 新增日食、月食、本地可见性、中心线、半影区域、SVG 图示与沙罗周期信息 - 新增行星冲合、留、方照、物理星历、视直径、相位、亮肢角、轨道节点等计算 - 新增木星伽利略卫星位置、现象与接触事件计算 - 新增恒星星表、星座判定、自行修正与观测辅助能力 - 新增 coord、formula、orbit、sundial、lite/sun、lite/moon 等扩展包 - 完善农历年号、月相英文别名、视差角、大气质量、折射、日晷与双星计算 - 增加 NASA、JPL Horizons、IMCCE 等回归测试数据与基线测试 - 重构基础算法文件组织，补充大量公开 API 注释和语义回归测试 - 更新中文和英文 README，补充示例、精度说明、SVG 配图
100 lines
2.0 KiB
Go
100 lines
2.0 KiB
Go
package basic
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import (
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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 MoonLo(jd float64) float64 { //'月球平黄经
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return planet.MoonLo(jd)
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}
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func SunMoonAngle(jd float64) float64 { // '月日距角
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return planet.SunMoonAngle(jd)
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}
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func MoonM(jd float64) float64 { // '月平近点角
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return planet.MoonM(jd)
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}
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func MoonLonX(jd float64) float64 { // As Double '月球经度参数(到升交点的平角距离)
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return planet.MoonLonX(jd)
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}
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func MoonI(jd float64) float64 {
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return planet.MoonI(jd)
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}
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func MoonR(jd float64) float64 {
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return planet.MoonR(jd)
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}
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func MoonB(jd float64) float64 {
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return planet.MoonB(jd)
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}
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func MoonTrueLo(jd float64) float64 {
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return planet.MoonTrueLo(jd)
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}
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func MoonTrueBo(jd float64) float64 {
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return planet.MoonTrueBo(jd)
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}
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func MoonAway(jd float64) float64 { //'月地距离
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return planet.MoonAway(jd)
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}
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/*
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* @name 月球视黄经
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*/
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func MoonApparentLo(jd float64) float64 {
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return MoonTrueLo(jd) + Nutation2000Bi(jd)
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}
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/*
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* 月球真赤纬
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*/
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func MoonTrueDec(jd float64) float64 {
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moonLo := MoonApparentLo(jd)
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moonBo := MoonTrueBo(jd)
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tmp := Sin(moonBo)*Cos(TrueObliquity(jd)) + Cos(moonBo)*Sin(TrueObliquity(jd))*Sin(moonLo)
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res := ArcSin(tmp)
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return res
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}
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/*
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* 月球真赤经
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*/
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func MoonTrueRa(jd float64) float64 {
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return LoToRa(jd, MoonApparentLo(jd), MoonTrueBo(jd))
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}
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func MoonTrueRaDec(jd float64) (float64, float64) {
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return LoBoToRaDec(jd, MoonApparentLo(jd), MoonTrueBo(jd))
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}
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/*
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*
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*
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传入世界时
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*/
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func MoonApparentRa(jd, lon, lat float64, tz int) float64 {
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jde := TD2UT(jd, true)
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utcJD := jde - float64(tz)/24.000
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ra := MoonTrueRa(utcJD)
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dec := MoonTrueDec(utcJD)
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away := MoonAway(utcJD) / 149597870.7
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topoRA := TopocentricRa(ra, dec, lat, lon, jd-float64(tz)/24.000, away, 0)
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return topoRA
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}
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func MoonApparentDec(jd, lon, lat, tz float64) float64 {
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jde := TD2UT(jd, true)
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utcJD := jde - tz/24
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ra := MoonTrueRa(utcJD)
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dec := MoonTrueDec(utcJD)
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away := MoonAway(utcJD) / 149597870.7
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topoDec := TopocentricDec(ra, dec, lat, lon, jd-tz/24, away, 0)
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return topoDec
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}
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