天气预报 > 自然 > 极昼极夜是怎么形成的
极昼极夜是怎么形成的
更新时间: 2021-03-07 17:38:32  

1、极昼与极夜的形成,是由于地球在沿椭圆形轨道绕太阳公转时,还绕着自身的倾斜地轴旋转而造成的。

2、地轴与其垂线形成一个约23.5°的倾斜角,因而地球在公转时便出现6个月时间两极之中总有一极朝着太阳,全是白天,另一极背对全是黑夜。

关键词: 怎么 形成

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