• @lunarul
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    33 days ago

    Charon is still a moon, nobody upgraded it to dwarf planet.

    • @[email protected]
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      13 days ago

      I thought for an object to be a satellite it’s orbital point had to be located inside the body of the other entity.

      • @lunarul
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        3 days ago

        There’s currently no formal definition requiring that. By that definition, none of Pluto’s five moons would be moons, since they all orbit the same barycenter.

        There’s a whole discussion about it here and it looks like it might be reconsidered in the future https://en.wikipedia.org/wiki/Charon_(moon)#Classification