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《授时历》五星推步的精度研究
引用本文:李勇.《授时历》五星推步的精度研究[J].天文学报,2011,52(1).
作者姓名:李勇
作者单位:中国科学院国家天文台,北京,100012
基金项目:国家自然科学基金项目(10973022)资助
摘    要:着重考察了《授时历》的步五星术,考校、复原了其推步方法.(1)推步了1299年木星历,并与已有研究进行比对,从而确认恢复方法的正确性.(2)得出《授时历》在1280~1650年间推步五星黄经的精度,木星、火星、土星、金星和水星的误差的绝对值平均分别为0.49°、1.91°、0.70°、2.82°和5.01°,木星、土星的精度较高.(3)指出将现代天文方法获取的《授时历》五星参数(周率、历率、度率、合应及历应)精确值代入《授时历》推步模型,木星、土星的推步精度并未提高,误差分别为1.83°和1.21°,而水星、金星和火星的误差却大幅加大,结果分别为30.04°、54.86°和10.82°.说明某些重要参数的修正并不能改善推步结果.

关 键 词:天文学史和哲学  历书  行星与卫星:个别:木星  火星  土星  金星  水星  

The Accuracy of the Five-planet Locations Calculated by the Chinese Ancient Calendar Named Shoushi Li
LI Yong.The Accuracy of the Five-planet Locations Calculated by the Chinese Ancient Calendar Named Shoushi Li[J].Acta Astronomica Sinica,2011,52(1).
Authors:LI Yong
Institution:LI Yong (National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012)
Abstract:The calendar Shoushi Li is one of the most famous calendars in ancient China, which was recorded in the Lizhi(ancient calendar book of China) of Yuanshi(annals of the Yuan Dynasty from 1279 to 1367).There are seven important calculation parts,including solar terms,syzygies,corrections of the sun and the moon,eclipses and so on.The locations of the five-planet are also in the list.Almost every part has a corresponding section in the modern astronomical year book.It is the last calendar formulated only by Chi...
Keywords:history and philosophy of astronomy  ephemerides  planets and satellites  individual  Jupiter  Mars  Saturn  Venus  Mercury  
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