- #1

Muu9

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- TL;DR Summary
- What happens to the once-circular orbit of a satellite when it's planet's mass suddenly doubles?

A satellite is orbiting a planet in a circular orbit. The planet's mass doubles instantly. What happens to the orbit of the satellite?

I think it would move to an elliptical orbit with major axis equal to the old radius and a minor axis equal to either 1/2 or sqrt(2)/2 times the old radius. I'm leaning toward the latter. What do you guys think?

I think it would move to an elliptical orbit with major axis equal to the old radius and a minor axis equal to either 1/2 or sqrt(2)/2 times the old radius. I'm leaning toward the latter. What do you guys think?