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Data wiki -> 開禧歷
開禧歷[View] [Edit] [History]ctext:306089
Relation | Target | Textual basis |
---|---|---|
type | work | |
name | 開禧歷 | |
authority-wikidata | Q24838400 | |
link-wikipedia_zh | 開禧曆 | |
indexed-in | work:直齋書錄解題 | 《直齋書錄解題·卷十二》:《開禧歷》三卷、《立成》一卷 |
juan-size 3 |
《開禧曆》,是中國古代曆法,南宋使用的第七部曆法,屬於陰陽曆。
宋寧宗開禧三年(1207年),鮑澣之修成。從開禧四年(1208年)頒布施行。歲實(回歸年)為365\frac{4108}{16900}=365.24307692日,朔策(朔望月)為29\frac{8967}{16900}=29.53059171日,歲差約為六十七年多差一度。《開禧曆》上元甲子距開禧三年(1207年)丁卯積7848183歲。《宋史》沒有記載《開禧曆》上元冬至宿度,也沒有記載冬至日躔所在。《中興天文》稱:「開禧占測冬至,巳在箕宿。」《開禧曆》墨守何承天之法,不知歲實有減少之勢,在制訂此歷時反倒是增加歲實。取法的近點月日數太強,惟交點月日數稍密近,步五星也精切。精確不如《統天曆》。宋理宗淳祐十一年(1251年),被《淳祐曆》取代。
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直齋書錄解題 | 1 |
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