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The Moon also revolves around the center of mass of the solar system. In a sense more than it does around the earth. In particular Moon's orbit around the baryc
by praptak 7y ago
The Moon also revolves around the center of mass of the solar system. In a sense more than it does around the earth. In particular Moon's orbit around the barycenter is convex - the popular picture of Moon's orbit having loops is wrong in that sense.
- rocqua 7y ago> the popular picture of Moon's orbit having loops is wrong in that sense. Do you mean the moon never moves 'backwards'?
- betenoire 7y agohttps://qph.fs.quoracdn.net/main-qimg-c8ca8c109ecb9dacdaa8295c535d2bab.webp https://qph.fs.quoracdn.net/main-qimg-c8ca8c109ecb9dacdaa829... Something like this
- jpindar 7y agoYep. Here's a discussion with diagrams and numbers: https://astronomy.stackexchange.com/questions/10979/moons-orbit-around-the-sun https://astronomy.stackexchange.com/questions/10979/moons-or...
- praptak 7y agoIt never goes backwards and it never "bends in" towards Sun.
- arnarbi 7y agoI think it's better to say it never "bends out" away from the sun, which is a different way to statue that it's orbit around the sun is convex.
- mncharity 7y agoMy illustrative story from a few years back, was that if Earth were to vanish, the Moon's orbit would merely smooth out a bit, losing a slight ripple. Whereas if Jupiter were to vanish, Io would zoom away, perhaps even leaving the solar system, or impacting the Sun.