New answers tagged orbital-mechanics
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Can planetary bodies have a second axis of rotation?
Uranus + Handwaving
The closest body I can think of to what you are describing is Uranus. Its axis of rotation is 90 degrees off of the other planets, but it is not tidally locked to the sun. So its ...
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Orbital Mechanics of a shell world
The orbit around the sun should be similar/identical to a denser object of the same mass. However, the orbit around the shell planet would be very different. The strength of gravity is dependent on F =...
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Accepted
Orbital Mechanics of a shell world
The thing you probably care about is the shell theorem. Newton proved that
A spherically symmetric body affects external objects gravitationally as though all of its mass were concentrated at a point ...
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