Earth actually has two moons.

Re:Earth actually has two moons. by harshpotatoes on Thursday December 22, 2011 @06:00PM (#3383737)

I don't see how this and Kepler's laws fit together. The moon's mass is significantly different from the earth. How could the moon have the same orbit as the earth if the earth wasn't there?

[ Parent | on HN ]

Re:Earth actually has two moons. by joshAg on Thursday December 22, 2011 @06:07PM (#3383753)

the orbit of a satellite does not depend on the mass of the satellite.

the period and orbital velocity are dependent on the mass of the orbited object and the radius of the orbit.

[ Parent | on HN ]