46 lines
1.8 KiB
Go
46 lines
1.8 KiB
Go
|
package moon
|
||
|
|
|
||
|
|
import (
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"b612.me/astro/basic"
|
||
|
|
)
|
||
|
|
|
||
|
|
// PhysicalInfo 月球物理观测参数 / physical observing parameters of the Moon.
|
||
|
|
type PhysicalInfo struct {
|
||
|
|
// OpticalLongitude 光学经度天平动，单位度 / optical libration in longitude, degrees.
|
||
|
|
OpticalLongitude float64
|
||
|
|
// OpticalLatitude 光学纬度天平动，单位度 / optical libration in latitude, degrees.
|
||
|
|
OpticalLatitude float64
|
||
|
|
// PhysicalLongitude 物理经度天平动，单位度 / physical libration in longitude, degrees.
|
||
|
|
PhysicalLongitude float64
|
||
|
|
// PhysicalLatitude 物理纬度天平动，单位度 / physical libration in latitude, degrees.
|
||
|
|
PhysicalLatitude float64
|
||
|
|
// LibrationLongitude 总经度天平动，单位度 / total libration in longitude, degrees.
|
||
|
|
LibrationLongitude float64
|
||
|
|
// LibrationLatitude 总纬度天平动，单位度 / total libration in latitude, degrees.
|
||
|
|
LibrationLatitude float64
|
||
|
|
// PositionAngle 月球自转轴位置角，单位度 / position angle of the lunar rotation axis, degrees.
|
||
|
|
PositionAngle float64
|
||
|
|
}
|
||
|
|
|
||
|
|
// Physical 月球物理观测参数 / physical observing parameters of the Moon.
|
||
|
|
func Physical(date time.Time) PhysicalInfo {
|
||
|
|
return PhysicalN(date, -1)
|
||
|
|
}
|
||
|
|
|
||
|
|
// PhysicalN 月球物理观测参数（截断版） / truncated physical observing parameters of the Moon.
|
||
|
|
func PhysicalN(date time.Time, n int) PhysicalInfo {
|
||
|
|
jde := basic.Date2JDE(date.UTC())
|
||
|
|
info := basic.MoonPhysicalN(basic.TD2UT(jde, true), n)
|
||
|
|
return PhysicalInfo{
|
||
|
|
OpticalLongitude: info.OpticalLongitude,
|
||
|
|
OpticalLatitude: info.OpticalLatitude,
|
||
|
|
PhysicalLongitude: info.PhysicalLongitude,
|
||
|
|
PhysicalLatitude: info.PhysicalLatitude,
|
||
|
|
LibrationLongitude: info.LibrationLongitude,
|
||
|
|
LibrationLatitude: info.LibrationLatitude,
|
||
|
|
PositionAngle: info.PositionAngle,
|
||
|
|
}
|
||
|
|
}
|