Tiānxiàng yuánwěi 天象源委
Sources and Threads of the Celestial Phenomena by 張永祚 (輯)
About the work
The Tiānxiàng yuánwěi is a sixteen-juǎn Qīng-period digest of the imperial astronomical tradition compiled by Zhāng Yǒngzuò 張永祚. The title pair yuán 源 (“source”) and wěi 委 (“thread”, “outflow”) signal the editorial schema: each topic is presented first in its canonical / historical “source” (HànSòng Tiānwén zhì and the Jesuit-introduced theory) and then in its “outflow” — the operational consequences and procedures of the modern Bureau.
Abstract
Composition window: Qīng, post-Verbiest-reform (1670s+) but probably no later than the early-19th-century. The bracket adopted is 1700–1850, with the early-to-mid Qiánlóng reign (1760s–80s) the most likely focus. The sixteen-juǎn extent and the yuánwěi organising scheme suggest an extended digest by an Anhui-school kǎozhèng-influenced scholar, comparable in genre to Méi Wéndǐng 梅文鼎’s Lìxué yíwèn 曆學疑問 or to 江永’s Tuībù fǎjiě (KR3fa025). The work absorbs the Verbiest Yíxiàng zhì coordinate framework and the Lǐxiàng kǎochéng derivations into a structured historical-and-operational presentation aimed at the shìdàfū reader rather than at the imperial Bureau itself.
The text is preserved in the Sìkù wèishōu shū jíkān and is reprinted in the Zhōngguó kēxué jìshù diǎnjí tōnghuì (refid KX03-07-027).
Translations and research
No substantial Western-language translation located.
- Jami, Catherine. 2012. The Emperor’s New Mathematics: Western Learning and Imperial Authority during the Kangxi Reign (1662–1722). Oxford: OUP.
- Han Qi 韓琦. 1999. “Astronomy, Chinese and Western: The Influence of Xu Guangqi’s Views in the Early and Mid-Qing Period.”
- Elman, Benjamin A. 2005. On Their Own Terms. Cambridge, MA: Harvard UP.