Results for « 表示 天体 间 距离 的 单位 » (cmn)
13657489-n
表示 天体 间 距离 的 单位, 秒差距, 秒 差距, 表示天体间距离的单位
parsec, secpar
     a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
 

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(0.00378 seconds)
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