Today I Learned (TIL)

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TIL of COCONUTS-2b, a giant gas planet that takes over 1 million years to orbit around its star (en.wikipedia.org)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] RankWeis 3 points 1 year ago (2 children)

I wonder what tech we have that can measure something that slow? Wouldn’t it just look stationary?

[–] [email protected] 2 points 1 year ago

Very accurate tech :)

[–] [email protected] 2 points 1 year ago

It does basically look stationary, but if you know the masses of the planet and the star and know the radius of orbit, then you can determine what the speed must be for it to be a stable orbit.