由於星星離地球遠，看著相對靜止，但地球以南北軸自轉，所以相對變成星星繞著南北極星在轉，時間長就成圈兒

來源: 逸遊為鏡於 2015-05-17 08:00:28 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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