16c62a97d5
- 新增时标、ΔT 模型、质心时间与 UT1 支持 - 改进日月食、月掩、行星事件及路径边界计算 - 完善恒星三维自行与动态距离传播 - 扩展 SVG、GeoJSON、KML 输出与底层距离换算工具 - 整理中英文手册、示例资源及回归测试
34 lines
983 B
Go
34 lines
983 B
Go
package sun
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import (
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"time"
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"b612.me/astro/basic"
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)
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// PhysicalInfo 太阳物理观测参数 / physical observing parameters of the Sun.
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type PhysicalInfo struct {
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// P 太阳北极位置角,单位度 / position angle of the solar north pole in degrees.
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P float64
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// B0 日面中心太阳纬度,单位度 / heliographic latitude of the disk center in degrees.
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B0 float64
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// L0 日面中心卡林顿经度,单位度 / Carrington heliographic longitude of the disk center in degrees.
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L0 float64
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}
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// Physical 太阳物理观测参数 / physical observing parameters of the Sun.
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func Physical(date time.Time) PhysicalInfo {
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return PhysicalN(date, -1)
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}
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// PhysicalN 太阳物理观测参数(截断版) / truncated physical observing parameters of the Sun.
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func PhysicalN(date time.Time, n int) PhysicalInfo {
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jd := basic.Date2JD(date.UTC())
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info := basic.SunPhysicalN(basic.UTC2TT(jd), n)
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return PhysicalInfo{
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P: info.P,
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B0: info.B0,
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L0: info.L0,
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}
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}
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