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秒差距
 
En
miǎo chā jù
  • parallax second or parsec or pc, astronomic unit of distance, approx 3.26 light years

秒差距 miǎo chā jù

秒差距
1 表示恒星距离的单位。视差一秒的恒星距离为一秒差距,一秒差距等于三点二五八光年,或三点零八四乘以十的十三次方公里。

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