feat: 完善时标与天象几何计算并扩展输出接口
- 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
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@@ -15,10 +15,10 @@ func ParallacticAngle(date time.Time, lon, lat float64) float64 {
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// ParallacticAngleN 截断项太阳视差角(天顶方向角) / truncated solar parallactic angle.
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func ParallacticAngleN(date time.Time, lon, lat float64, n int) float64 {
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jde := basic.Date2JDE(date.UTC())
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jd := basic.Date2JD(date.UTC())
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return basic.ParallacticAngleByHourAngle(
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HourAngleN(date, lon, lat, n),
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basic.HSunApparentDecN(basic.TD2UT(jde, true), n),
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basic.HSunApparentDecN(basic.UTC2TT(jd), n),
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lat,
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)
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}
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