b612
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
30 lines
885 B
Go
30 lines
885 B
Go
package moon
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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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// Semidiameter 月亮视半径，单位角秒 / apparent lunar semidiameter in arcseconds.
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func Semidiameter(date time.Time) float64 {
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return SemidiameterN(date, -1)
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}
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// SemidiameterN 月亮视半径（截断版），单位角秒 / truncated apparent lunar semidiameter in arcseconds.
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func SemidiameterN(date time.Time, n int) float64 {
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jd := basic.Date2JD(date.UTC())
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return basic.MoonSemidiameterN(basic.UTC2TT(jd), n)
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}
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// Diameter 月亮视直径，单位角秒 / apparent lunar diameter in arcseconds.
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func Diameter(date time.Time) float64 {
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return DiameterN(date, -1)
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}
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// DiameterN 月亮视直径（截断版），单位角秒 / truncated apparent lunar diameter in arcseconds.
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func DiameterN(date time.Time, n int) float64 {
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jd := basic.Date2JD(date.UTC())
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return basic.MoonDiameterN(basic.UTC2TT(jd), n)
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}
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