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Data wiki -> 統天歷
統天歷[View] [Edit] [History]ctext:793615
Relation | Target | Textual basis |
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type | work | |
name | 統天歷 | |
authority-wikidata | Q11606814 | |
link-wikipedia_zh | 統天曆 | |
indexed-in | work:直齋書錄解題 | 《直齋書錄解題·卷十二》:《統天歷》一卷 |
juan-size 1 |
《統天曆》是中國古代曆法,南宋楊忠輔編纂,屬於陰陽曆。
宋寧宗慶元五年(1199年)曆成,帝賜名為《統天曆》,並於是年實施。
《統天曆》計算出1太陽年為365.2425日,1朔望月為29.530594日,這一數值取代了祖沖之測量的365.2428日。與公曆的1太陽年的數値相同。清人梅文鼎稱「宋歷莫善于紀元,尤莫善于統天」。然而,嘉泰二年(1202年)五月甲辰朔日蝕,《統天曆》預推時刻比實際天象早了一個半時辰。《統天曆》因推測日蝕不驗,僅使用到開禧三年(1207年)。大理評事鮑澣之曾對《統天曆》虛立上元一事大加撻伐,謂「以是而為術,乃民間之小歷。而非朝廷頒正朔、授民時之書也。」於是,鮑澣之又造《開禧曆》取代《統天曆》。
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直齋書錄解題 | 1 |
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