Updated, now it's smaller, but stable!
Oh yeah, i almost forgot, the circle in the middle is also used to keep it there, if you delete it, the moon starts to collapse ontop of itself. (atleast for alittlewhile)
To be honest, im not really sure why it made that circle, to be honest, i mostly just watched the planet form by itself, i didn't really create it. Either way, it wasn't really a crater at all lol.
You -1 it once but twice! C'mon! Jking... This is pretty good but why the circle in the middle? If thats a crater you should make it obvious and add several others to actually make it like a realistic moon.