《梦溪笔谈》中的“黄道”叙事研究

A Study on the Narration of“the Ecliptic”in the Mengxi Bitan

黄道在两汉时期被引入了天文历算,沈括在《梦溪笔谈》中记录了天文现象的客观观测与推演,并以黄道相关的叙事笔记来阐释岁差、黄白交点、黄赤交角等概念,进一步厘清行星运行轨道、历法错误等问题。由此可见北宋天文学发展盛况。

Ecliptic was introduced to astronomy and calendrical calculation in the Western and Eastern Han dynasties.In the Mengxi Bitan,Shen Kuo recorded his objective observations and deductions of astronomical events,and used ecliptic-related narrative annotations to explain the precession,intersection of the ecliptic with the moon’s orbit plane,obliquity of the ecliptic,and various other concepts.He also further clarified the orbits of planets,calendar error and other problems,reflecting the thriving stage of astronomy development back in the Northern Song dynasty.