Originally posted by Guille: I see. So I can't create more than 100 stars to make the biggest colony in sphereworlds. Too bad.
You can have up to 255 systems in a map. Go into Settings.txt in the Data folder and increase the Max Systems setting (near the top). Higher than 255 will cause an error in SE4, so don't make it higher than that.
There is either a 255 per system limit, or an overall limit for the entire map (which is probably 256^2-1). Whatever it is, it is too large to be able to hit it practically.