浑仪是我国传统的天文观测仪器,已有2000多年的发展历史。它大约创始于战国初期,西汉时期已有“汉落下宏为武帝于地中转浑天”记载。(《尚书通考》)在漫长的岁月里,其形体由小到大,整体结构也由简单趋向复杂。现陈设于南京紫金山天文台的浑仪、简仪,均为明代正统年间所仿铸。 原始浑仪可能由两个环组成, Armillary sphere is a traditional astronomical observation instrument in our country. It has a history of more than 2,000 years. It started about the beginning of the Warring States period, the Western Han Dynasty has been “Han falling macro for Wudi in the muddy days” record. (“Shang Shu Tong Kao”) In the long years, its shape from small to large, the overall structure also from simple to complex. Now located in Nanjing Purple Mountain Observatory’s cemetery, Jane instrument, are the Ming Dynasty orthodox imitation. Primitive armor may be composed of two rings,