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[–] 5 points 6 days ago (1 child)

The Earth-Moon barycenter is below the surface of Earth, not outside Earth's body.

https://en.wikipedia.org/wiki/Barycenter_(astronomy)

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  • [–] 4 points 6 days ago* (last edited 6 days ago)

    Ah, thanks, I thought I'd read that it was outside, but didn't feel like doing the math to confirm in that second. I'll edit it!

    E: Ah, I have figured out what it was: the Sun-Jupiter barycentre is outside the surface of the sun, and that's why the Barycentre is a bad metric. Different argument.

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