feat: 引入可切换星历模型并扩展天象观测链路
- 新增半解析、旧模型、自定义与多源堆叠星历实例,提供 Context、Instance、SPK 读取及状态与视位置计算 - 统一太阳、月球和行星实例接口,扩展黄经穿越、留、相位、最近角距、偕日可见、任意高度升落、轨道节点及凌日等天象查询 - 完善日月食、月掩与凌日的月缘剖面、有限盘面接触、站心修正、局地可见性、全球路径和地图输出 - 新增 SVG、GeoJSON、KML 天象输出及凌日、月掩和月缘地形相关缓存与几何求解 - 新增恒星星表导入与查询,支持 CSV、Hipparcos、BSC5、Stellarium 等格式及名称、交叉标识、锥面检索和星等过滤 - 补充 IAU 2006、地球定向、折射消光、大气观测、轨道传播及半解析行星/月球数据支持 - 将默认未来民用时标切换为 TimeScaleLeapHour,更新 2027–2400 农历速查表、中文日期解析和时区边界处理 - 增加事件基线、跨模型回归、几何边界、月缘地形和输出契约测试,完善中英文手册、示例资源、NOTICE 与忽略规则
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package catalog
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import (
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"math"
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"os"
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"testing"
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"time"
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"b612.me/astro/basic"
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)
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func TestCatalogCoordinatesFeedSearches(t *testing.T) {
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bsc := readFixtureCatalog(t, "bsc5_sample.dat", func(f *os.File) (*Catalog, error) {
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return ReadBSC5(f, ReadOptions{})
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})
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target, ok := bsc.Lookup("HR 4799")
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if !ok {
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t.Fatal("HR 4799 missing")
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}
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location := time.FixedZone("CST", 8*3600)
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best, err := basic.FindBestStarOccultations(
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time.Date(2025, 6, 5, 0, 0, 0, 0, location),
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time.Date(2025, 6, 6, 0, 0, 0, 0, location),
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target.Coordinate, basic.OccultationSearchOptions{MaxEvents: 1})
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if err != nil || len(best) != 1 {
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t.Fatalf("occultation = %d events, %v", len(best), err)
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}
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if d := best[0].Greatest.Sub(time.Date(2025, 6, 5, 20, 2, 7, 700000000, location)).Seconds(); math.Abs(d) > 5 {
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t.Fatalf("greatest off by %.1f s", d)
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}
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sirius, ok := bsc.Lookup("HR 2491")
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if !ok {
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t.Fatal("HR 2491 missing")
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}
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startJD := basic.Date2JD(time.Date(2025, 1, 1, 0, 0, 0, 0, time.UTC))
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events := basic.FindStarHeliacalEventsWithInstance(sirius.Coordinate, sirius.Magnitude, startJD, startJD+366, 31.2, 30.0, basic.HeliacalOptions{}, nil)
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if len(events) == 0 {
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t.Fatal("no heliacal events for Sirius at Cairo")
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}
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}
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