View Full Version : Roche's World

Tom Mazanec
2004-Jul-28, 09:40 AM
What would it be like on a Earth sized moon of a gas giant in the ecosphere of a solar type star orbiting 1.01 times its Roche Limit from its primary? Assume the gas giant has no radiation belt, assume the moon has zero eccentricity, and so forth. In other words, assume a perfect case where there is a livable world just short of becoming a ring. Would its atmosphere "keak" out. Would you be able to throw a baseball a mile in one direction and ten meters in another? What would daily life be like here?

2004-Jul-28, 10:59 AM
I'd hate to see what life would be like when the moon is obstructed from the sun by the planet. :(

2004-Jul-28, 12:39 PM
Robert Forward wrote a few books about a binary pair of planets orbiting just outside the Roche Limit from each other. The two worlds shared an atmosphere, and were populated by some interesting (if biologically unlikely) aliens.

2004-Jul-28, 01:23 PM
There are a couple of illustrations included inline in the Two bodies of equal size in orbit around each other (http://www.badastronomy.com/phpBB/viewtopic.php?p=295032#295032) thread.