[Influence of Adam Schall's changing calendar on Yun - qi theory in the early Qing Dynasty].
The Yun - qi theory is closely related to the calendar system. In Chinese history, the change of the calendar system by Adam Schall von Bell in early Qing Dynasty was a disputable event. Studying its effect on Yun - qi theory, we find out the issue of changing the order of Zi and Shen lunar mansions, which annoyed many Chinese astronomers and scholars, had no significant influence on Yun - qi theory. As for the new calculation system of clepsydra and solar terms, these changes increased the accuracy of the Yun - qi calendar.
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D001256:Astronomy / Q000266:history*; D002681:China; D005060:Europe; D049692:History, Early Modern 1451-1600; D049691:History, Medieval; D049711:History, Modern 1601-; D010684:Philosophy / Q000266:history*