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package astro
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import (
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"errors"
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"time"
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"b612.me/astro/basic"
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)
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/*
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获取当前时刻(本地时间)对应的儒略日时间
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*/
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func NowJDE() float64 {
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return basic.GetNowJDE()
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}
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/*
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日期转儒略日
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*/
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func Date2JDE(date time.Time) float64 {
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day := float64(date.Day()) + float64(date.Hour())/24.0 + float64(date.Minute())/24.0/60.0 + float64(date.Second())/24.0/3600.0 + float64(date.Nanosecond())/1000000000.0/3600.0/24.0
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return basic.JDECalc(date.Year(), int(date.Month()), day)
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}
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/*
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儒略日转日期
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*/
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func JDE2Date(jde float64) time.Time {
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return basic.JDE2Date(jde)
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}
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/*
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公历转农历
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返回:月,日,是否闰月,文字描述
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*/
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func Lunar(year, month, day int) (int, int, bool, string) {
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return basic.GetLunar(year, month, day)
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}
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/*
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农历转公历
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*/
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func Solar(year, month, day int, leap bool) time.Time {
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jde := basic.GetSolar(year, month, day, leap)
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return JDE2Date(jde)
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}
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/*
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太阳升起时间
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jde,世界时当地0时 JDE
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lon,经度,东正西负
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lat,纬度,北正南负
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timezone,时区,东正西负
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aero,true时进行大气修正
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*/
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func SunRiseTime(jde, lon, lat, timezone float64, aero bool) (time.Time, error) {
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var err error = nil
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tz := 0.00
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if aero {
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tz = 1
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}
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tm := basic.GetSunRiseTime(jde, lon, lat, timezone, tz)
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if tm == -2 {
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err = errors.New("极夜")
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}
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if tm == -1 {
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err = errors.New("极昼")
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}
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return JDE2Date(tm), err
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}
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/*
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太阳落下时间
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jde,世界时当地0时 JDE
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lon,经度,东正西负
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lat,纬度,北正南负
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timezone,时区,东正西负
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aero,true时进行大气修正
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*/
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func SunDownTime(jde, lon, lat, timezone float64, aero bool) (time.Time, error) {
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var err error = nil
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tz := 0.00
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if aero {
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tz = 1
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}
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tm := basic.GetSunDownTime(jde, lon, lat, timezone, tz)
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if tm == -2 {
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err = errors.New("极夜")
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}
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if tm == -1 {
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err = errors.New("极昼")
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}
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return JDE2Date(tm), err
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}
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/*
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晨朦影
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jde,世界时当地0时 JDE
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lon,经度,东正西负
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lat,纬度,北正南负
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timezone,时区,东正西负
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angle,朦影角度:可选-6 -12 -18
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*/
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func MorningTwilightTime(jde, lon, lat, timezone, angle float64) (time.Time, error) {
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var err error = nil
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tm := basic.GetAsaTime(jde, lon, lat, timezone, angle)
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if tm == -2 {
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err = errors.New("不存在")
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}
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if tm == -1 {
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err = errors.New("不存在")
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}
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return JDE2Date(tm), err
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}
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/*
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昏朦影
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jde,世界时当地0时 JDE
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lon,经度,东正西负
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lat,纬度,北正南负
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timezone,时区,东正西负
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angle,朦影角度:可选-6 -12 -18
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*/
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func EveningTwilightTime(jde, lon, lat, timezone, angle float64) (time.Time, error) {
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var err error = nil
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tm := basic.GetBanTime(jde, lon, lat, timezone, angle)
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if tm == -2 {
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err = errors.New("不存在")
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}
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if tm == -1 {
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err = errors.New("不存在")
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}
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return JDE2Date(tm), err
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}
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/*
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月亮升起时间
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jde,世界时当地0时 JDE
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lon,经度,东正西负
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lat,纬度,北正南负
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timezone,时区,东正西负
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aero,true时进行大气修正
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*/
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func MoonRiseTime(jde, lon, lat, timezone float64, aero bool) (time.Time, error) {
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var err error = nil
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tz := 0.00
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if aero {
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tz = 1
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}
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tm := basic.GetMoonRiseTime(jde, lon, lat, timezone, tz)
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if tm == -2 {
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err = errors.New("极夜")
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}
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if tm == -1 {
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err = errors.New("极昼")
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}
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return JDE2Date(tm), err
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}
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/*
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月亮落下时间
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jde,世界时当地0时 JDE
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lon,经度,东正西负
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lat,纬度,北正南负
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timezone,时区,东正西负
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aero,true时进行大气修正
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*/
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func MoonDownTime(jde, lon, lat, timezone float64, aero bool) (time.Time, error) {
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var err error = nil
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tz := 0.00
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if aero {
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tz = 1
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}
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tm := basic.GetMoonDownTime(jde, lon, lat, timezone, tz)
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if tm == -2 {
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err = errors.New("极夜")
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}
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if tm == -1 {
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err = errors.New("极昼")
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}
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return JDE2Date(tm), err
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}
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/*
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月相
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jde,世界时UTC JDE
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*/
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func Phase(jde float64) float64 {
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return basic.MoonLight(basic.TD2UT(jde, true))
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}
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