Re: Needs a moon of decent size
Apparently not for a cold, rocky body. It has been in the past (why it is round) but it has cooled and it is now believed to be rigid enough to no longer qualify. One of the problematic issues of the planet definition, although I have no intention of debating that issue here.
Icy bodies or rock/ice mixes can be a lot smaller and remain in hypostatic equilibrium, but that doesn't describe the Moon.
Biting the hand that feeds IT
