The angular difference between the astronomical axis and the axis of figure called a "nutation" causes an earth orbit al spirical oscillation known as the famous chandler "wobble".
在天文学轴和形状轴之间的角度差称做“章动”，引起地球轨道螺旋摆动，就是著名的卡南德尔“摆动”。
In this modeling process, the precession, nutation and some other astronomical quantities are considered through two standards released by U. S. Naval Observatory in 1981 and 2005, respectively.
建模过程中，对岁差、章动等量的计算分别考虑了美国海军天文台1981年和2005年的两种天文标准。
应用推荐