明末清初官方历法中的日食食限

Solar eclipse limit in the official calendar in late Ming and early Qing Dynasties

日食食限是判断日食发生与否的重要参数,素来为中国天算家所重视。明末清初之际,西法食限知识传入中国,并被积极引入官方历法。通过分析中西历争背景下关于日食食限的争论,比对3部官方历法中的相关记述,并在此基础上研究清代学者对日食食限的认识程度与应用方式。

Solar eclipse limit is an important parameter to determine whether the eclipse occurs or not, it has always been valued by Chinese astronomers. In the late Ming and early Qing Dynasties, the knowledge of western Solar eclipse limit was introduced into China, and was introduced actively into the official calendar. This paper analyzes the debate about eclipse limit in the background of the struggle between Chinese and west- ern calendar, Compares the relevant accounts of several official calendars, on this basis, this paper studies the scholars in Qing Dynasty in terns of the cognition degree and application method of solar eclipse limit.