A supermoon occurs when the Moon’s orbit is closet (perigee) to Earth. This supermoon is seen as it rose behind the U.S. Capitol, Monday, March 9, 2020, in Washington, DC.

Image Credit: NASA/Joel Kowsky

当月球的轨道与地球近在咫尺(近地点)时,就会出现超月。2020年3月9日,星期一,超级月亮在美国国会大厦后面升起。

图片来源:美国宇航局/乔尔·考斯基

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