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Overview
Key data
| Item | Detail |
|---|---|
| Period of use | 1064 – 1073 CE |
| Compiler | Zhou Cong |
| Year head | Jian-yin |
Zhou Cong and the Mingtian calendar
The Mingtian calendar was made by Zhou Cong and others, promulgated in 1064 CE, replacing the Chongtian.
Zhou valued measurement; he led observations of shadow lengths and stellar positions to test the calendar. The Mingtian was built on the new data, and its precision improved.
Shen Kuo and the Mingtian
Shen Kuo took part in its discussion and pointed out faults in the treatment of the no-zhongqi intercalary month and in eclipse computation. Northern Song calendrical disputes largely turned on measurement.
Full text
No electronic full text of this work is available here. This calendar has no separate transmitted text; its methods survive scattered in the calendrical treatises of the standard histories. Among the histories held here, see Songshi, Calendrical Treatise, juan 74.
The title, date, summary and index structure compiled here are offered under CC BY 4.0 (attribution: Chujia Kuang · kuangchujia.com).
Compiled and arranged by Chujia Kuang.