“天球仪”是天球的模型,主要用于天文教学中解决天体在球面上的视位置对于不同座标系统的换算关系,也有助于理解球面天文学.“天球仪”是我国古老的仪器,在古代称为“浑象”,据文字记载第一台浑象是耿寿昌于公元前70～50年制造的.后汉著名天文学家张衡(公元78～138年)创造的“水运浑天仪”的主体也是浑象.到宋朝元佑三年(公元1088年)苏颂和韩公廉等人在汴京(开封)建水运仪象台,台高三层,其中层为浑象.根据苏颂所著《新仪象法要》上的图和文字说明复制的浑象模型,现陈列在历史博物馆中.天球仪在两千多年中,虽经过多次改进,但仍保持了原来的基本结构.直到今天仍然有广泛的实 The “celestial globe” is a model of the celestial sphere and is mainly used in the astronomical teaching to solve the conversion relation of the celestial sphere's apparent position on different coordinate systems and to understand the spherical astronomy. “Celestial globe” is an ancient instrument in our country. Ancient called “muddha”, according to the text recorded the first muddy is Geng Shouchang in 70 BC to 50 years of manufacture.After the famous Chinese astronomer Zhang Heng (AD 78 to 138 years) to create the “water armillary celestial sphere” is also the main muddy As to the Song Dynasty Yuanyou three years (AD 1088) Su Song and Han Gong Lian et al in Beijing (Kaifeng) built water platform, platform, three layers, the middle layer of the image.According to Su Song's "new image The figure and caption on Fa-Fa are reproduced in the Museum of History, and the celestial globe has maintained its original structure despite many improvements in more than two thousand years. It remains widespread until today The reality