binary asteroid meaning in English

双小行星

( 4 ) before the presentation of results of our observations and analysis , the corrections for the ccd images and the methods to analyze the observational data were introduced . ( 5 ) in order to analyze the lightcurves of ( 469 ) with multi - periods , the theories about the precession of the asteroids and the eclipse of the binary asteroids were involved
因此，在第五章中，针对2002年所观测的一颗非单一周期光变的小行星( 469 )的情况，尝试利用小行星受迫进动或双小行星运动理论，对( 469 )的光变曲线进行了解释。
( 2 ) based on two classical photometric models of the asteroids , the luminosity variation of the asteroids were introduced . there is significant difference between the luminosity variation due to the rotation surrounding a unique axis and the one due to rotation accompanying with the precession and the eclipse of binary asteroids
为了了解小行星的光度这个物理量，在第二章中介绍了两种经典的小行星光度模型，讨论了小行星光度随相位角的变化及冲效应对光度的影响，分析说明了引起小行星光度变化的若干因素。