But it's not that simple either, because the dates of the perihelion and aphelion are also shifting.
但这并不是简单的一件事情,因为近日点和远日点的日期都会变换。
This composite neatly compares two pictures of the Sun taken with the same telescope and camera on the dates of Perihelion (closest approach) and Aphelion in 2008.
这张合成照片直观地比较了两张由同一台望远镜和照相机拍摄的太阳,一张拍摄于2008年近日点,另一个拍摄于同年的远日点。
W hen the Earth moves from perihelion to aphelion, its radiation belts are expansion, and aphelion to perihelion contraction.
当地球从远日点运动到近日点时,地球辐射带向内收缩。
W hen the Earth moves from perihelion to aphelion, its radiation belts are expansion, and aphelion to perihelion contraction.
当地球从远日点运动到近日点时,地球辐射带向内收缩。
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