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Q&A Can a dual planet have an orbit around the Sun similar to Earth's?

This is a sequel to my previous question How big could a moon be before its orbit became too unstable or tidally locked to its planet OK, let's imagine that the thing everyone thought was a moon w...

4 answers  ·  posted 7y ago by shieldedtulip‭  ·  last activity 7y ago by shieldedtulip‭

Question weather astronomy planets physics geophysics