From Wikipedia, the free encyclopedia
冥衞一(Charon)係冥王星嘅其中一粒衞星,平均直徑約莫1207 ± 3公里,響1978年發現。佢係冥王星最大、離冥王星最近嘅衞星。
冥王星同冥衞一各自都俾對方潮汐鎖定,以6.387日嘅週期互相環繞,所以冥王星同冥衞一始終都係用同一面朝向對方。
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