Since this looks like I might have to update it every time a new faction with a new homeworld is added to the game, I think I will go ahead and make this a "proper" mod. All I really have to do is add a README and a version history, I think. I'll go ahead and start a dedicated thread for this in the modding section when I do. Probably some time over the weekend.
So by "next weekend" I CLEARLY meant to say "It'll slip my mind and I'll only release it as a 'proper mod' when I'm forced to several months later".
Anyway, I've now started a thread in the mod forum where one can find this mod as an actual mod with a README (such as it is). And I'll be issuing all further updates in that thread and not this one.
Link to the Moar Stars thread: https://forums.galciv3.com/475516/page/1/
Link to the latest version of the mod: https://drive.google.com/uc?export=download&id=0By8Y969dyvLHLWI0T3lPVWV2QmM
See ya'll over there (and sorry for the delay ).