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