I was watching CNN tonight and there was something about several new moons being discovered around Jupiter, bringing the total number to 47. I have tried searching the the SDMB archives and elsewhere on the internet trying to get a definition of how big an orbiting object has to be in order to be called a “moon”. From everything I gather, a moon could be as small as a pebble, as long as someone in authority defines it as a moon. If any little rink-a-dink piece of orbiting rock is technically a moon, isn’t it likely Jupiter has thousands? Millions? And what about Earth?
BTW, my Webster’s New Universal Unabridged Dictionary 2nd Edition defines moon as “any planetary satellite” which doesn’t really help. And if there is no size limitation for calling an object a moon…shouldn’t there be?