关于二分点进动的一种计算方法  

A CALCULATION METHOD OF BINARY PRECESSION

作　　者：赵强[1] 刘萍[1] 张喆[2] ZHAO Qiang;LIU Ping;ZHANG Zhe(School of Physics,Xi'an Jiaotong University,Xi'an,Shaanxi 710049;School of Computer Science and Technology,Xi'an Jiaotong University,Xi'an,Shaanxi 710049)

机构地区：[1]西安交通大学物理学院,陕西西安710049 [2]西安交通大学计算机科学与技术学院,陕西西安710049

出　　处：《物理与工程》2023年第3期49-51,56,共4页Physics and Engineering

摘　　要：本文首先推导出了一个大圆环给处在其环心位置的小圆环的引力力矩公式,然后利用此公式计算出了月亮及太阳给赤道环的合力矩,从而用简洁地方法解释了二分点进动的周期。In this paper we first derived a formula of a large circle's gravitational moment to-ward a small circle positioned on its center.Then based on this formula,the resultant mo-ment from the Sun and the Moon to the equatorial ring is calculated so that we could briefly explain the period of binary precession.

关 键 词：圆环 力矩 赤道环 进动 

分 类 号：P137.2-4[天文地球—天体力学]