Alright, I’ll take that challenge.
Turns out it really didn’t take much effort to turn the world generator into a (really basic) galaxy generator. Right now it just uses a galaxy image to generate the density distribution of stars. (NGC 1300 here)
The galaxy generator is currently generating a 17B star equivalent galaxy, which is a bit less than the Large Magellanic Cloud has. Of Course, it only needs to generate the relevant stars visible from the starting planet, so there are only ~10K stars generated directly. (The dim local stars, and the distant bright stars. The points visible on the grandest scale of the galaxy would really be globular clusters, not individual stars.)