The 'Verse

Here is a good simplified map of the (otherwise extremely complicated) star cluster that Serenity takes place in. It is a cluster of five stars that are very close together.

A list of all the planets can be found here.

I found another decent wiki with a list of planets and moons here. There is a lot of good info on the site, but it is kinda a pain to navigate.

Ok, I'm beginning to doubt that the map I posted is correct on anything beyond the core planets. It was fan made and I don't think they did much research first. I've found several contradictions with other material.

This one seems at least somewhat better, although there's still a margin of error between it and the wiki. I think unless someone wants to shell out money for the official map (which seems dumb to me), we'll just have to pick a map and call it official.