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《#高麗史51卷-志5-歷2》[View] [Edit] [History]
1 | 推定朔弦望加時日月宿度。 |
2 | ○置經朔弦望入盈縮歷日及分以加 差加 之為定朔弦望入歷。 在盈便為中積在縮加半歲周為中積。 命日為度以盈縮差盈加縮 之為加時定積度。 以冬至加時日 黃道宿度加而命之各得定朔弦望加時日度。 凡合朔加時日月同度便為定朔加時月度。 其弦望各以弦望度加定積為定弦望月行定積度。 依上加而命之各得定弦望加時黃道月度。 |
URN: ctp:ws172383
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