If a planet had a perfectly flat surface (no mountains, etc.), and had no atmosphere, would it be possible to orbit it at one cm above the ground?

The planet might be perfectly flat but still have a planetary bulge like at Earth’s equator. So you’d have to account for all of that to clear over it.

That being said, no orbit is completely round. Every orbit has different degrees of eccentricity. However, if you could get a perfectly round orbit around a geometrically perfect spherical planet with no atmosphere, and you were at the planet’s equator launching precisely East, then the answer would be yes!

Author: Wayne Boyd

Wayne Edward Boyd was born in Morristown, New Jersey in 1953. He is a published author, former ISKCON sannyasi, and traveler, having lived on 3 continents and visited 37 countries. He presently lives in Amarillo, Texas working as a correctional officer and has interests in photography, political science and astronomy.

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