天气预报 > 其他 > 月球绕地球一圈至少要多少时间
月球绕地球一圈至少要多少时间
更新时间: 2020-10-06 00:00:00  

月球沿着椭圆轨道绕地球运转;月球公转周期为一恒星月,等于27、32166日;这个轨道平面在天球上截得的大圆称“白道”;白道平面不重合于天赤道,也不平行于黄道面,而且空间位置不断变化;月球轨道对地球轨道的平均倾角为5度9分。

关键词: 月球 地球 至少 多少 时间

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