31 lines
913 B
Go
31 lines
913 B
Go
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package mars
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import (
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"time"
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"b612.me/astro/basic"
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"b612.me/astro/calendar"
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)
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// AscendingNode 火星升交点黄经 / ascending node longitude of Mars.
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func AscendingNode(date time.Time) float64 {
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return AscendingNodeN(date, -1)
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}
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// AscendingNodeN 火星升交点黄经（截断版） / truncated ascending node longitude of Mars.
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func AscendingNodeN(date time.Time, n int) float64 {
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jde := calendar.Date2JDE(date.UTC())
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return basic.MarsAscendingNodeN(basic.TD2UT(jde, true), n)
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}
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// DescendingNode 火星降交点黄经 / descending node longitude of Mars.
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func DescendingNode(date time.Time) float64 {
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return DescendingNodeN(date, -1)
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}
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// DescendingNodeN 火星降交点黄经（截断版） / truncated descending node longitude of Mars.
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func DescendingNodeN(date time.Time, n int) float64 {
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jde := calendar.Date2JDE(date.UTC())
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return basic.MarsDescendingNodeN(basic.TD2UT(jde, true), n)
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}
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