7c:T481,

拍米（英文：Petametre，符號Pm）係一個長度單位。1 拍米＝10¹⁵米。

換算
- 1 拍米 = 6685 天文單位
- 1 光年 = 9.46 拍米
- 1 秒差距 = 30.86 拍米

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