试论李光地的中国传统天文学

LI GUANGDI'S RESEARCH OF TRADITIONAL CHINESE ASTRONOMY

李光地是清初有影响的政治家和思想家。他十分重视我国传统天文学与近代西方天文学的比较研究，深入发掘中国传统天文学的思想精华，在整理研究中国传统天文学方面做出了贡献。该文就李光地在古老“天圆地方”说辨析、传统地圆思想考释、重建《周髀算经》天文学体系以及提出新一代浑盖合通论诸方面进行了初步探讨。

As an influential politician and thinker in the early pened of the Qing Dynasty,Li Guangdi devoted himself to the comparative research in traditional Chinese astronomy and modern Western astronomy.He probed deeply the cream Of thinking in traditional Chinese astronomy, meanwhile contributed a lot to its collection and research.This paper makes a tentative inquiry into Li's differentiation and analysis of the ancient theory of 'a square earth and spherical heavens',study and exposition of the traditional theory of a spherical earth, reconstruction of the astronomical system of Zhou Bi Suan Jing(Arithmetical Classic of the Gnomon and the Circular Paths), and advancement of a new theory of Hun Gal He Tong.