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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 days ago

Say hello to Bary

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Say hello to Bary

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 days ago
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https://en.wikipedia.org/wiki/Barycenter_(astronomy)

  • essell@lemmy.world
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    2 days ago

    I believe that’s the same for every planet. And every moon. For every orbit.

    Its just that the barycenter is inside the more massive object when one is much more massive than the other. Not that this makes much of a difference to anything.

    • deadbeef79000@lemmy.nz
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      2 days ago

      Correct.

      I also believe that one of the criteria for a binary planet is that the barycenter is outside either body. Like Pluto/Charon.

      • mnemonicmonkeys@sh.itjust.works
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        2 days ago

        Don’t forget the other 3 bodies in the Pluto/Charon system

        • SpaceNoodle@lemmy.world
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          2 days ago

          Is that a problem?

          • 9bananas@feddit.org
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            1 day ago

            depends! do you wanna know how the system will evolve over long periods of time?

            … then yes!

            • SpaceNoodle@lemmy.world
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              So you’re saying it’s a Three-Body Problem

              • mnemonicmonkeys@sh.itjust.works
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                1 day ago

                Technically 5, but yes

        • panda_abyss@lemmy.ca
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          2 days ago

          I’ve always preached inclusivity and would welcome 3 more planets

        • deadbeef79000@lemmy.nz
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          2 days ago

          I just can’t remember their names :-(

          • Denvil@lemmy.ml
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            1 day ago

            The only one I remember is Styx cause I remember the river from mythology cause I thought it was cool. Not a damn clue what the others were.

            • deadbeef79000@lemmy.nz
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              1 day ago

              Oh yeah! Also Nix and Hygea i think.

          • mnemonicmonkeys@sh.itjust.works
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            1 day ago

            Same. That’s why I was lazy and didn’t even mention them ;)

    • Steve Dice@sh.itjust.works
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      2 days ago

      I mean, sure, but that’d be like saying I’m pulling the earth towards me when I jump.

      • davidgro@lemmy.world
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        If you have ever done a handstand then you have lifted over your head the weight that the entire mass of the earth has in your own gravitational field.

      • LifeInMultipleChoice@lemmy.dbzer0.com
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        You don’t have to jump, you’re already doing it. Some of us more than others… *Looks in mirror and hangs head

      • exasperation@lemmy.dbzer0.com
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        Isn’t that canceled out by the pushing you do when you start to jump?

        • Steve Dice@sh.itjust.works
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          20 hours ago

          Yeah, but then I pull it back as I’m falling.

    • Fluffy Kitty Cat@slrpnk.net
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      Pluto and it’s biggest moon Charon about for the very center outside of each other. This means that you could build a space elevator directly between the surface of each of them and it would rotate around that point since they’re also tightly locked.

    • BurgerBaron@piefed.social
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      Asteroids everything does to some degree even if miniscule I’d assume.

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