Been trying to get realistic looking nebula and stars, here is an attempt.
Ok I zoomed it out a bit …actually it didnt seem to improve,also did some more tweaking which made the nebula even larger which kinda messed up the zooming out so…, I have put the blend file up for you to experiment with, It would be nice to see what you can do with it, let me know how it goes. I think the contrast could be relatively easy to fix with some post production work, which I havent done for these images. My main aim was to make a nebula for animation purpose’s which is fast to render, which it is since the whole image only contains about 20 or so vertices with halo materials. Update: dont bother trying any kind of spinning animations with it, I just found out that as you rotate the camera the halos seem to spin in the oppossite direction for some reason I dont know probably because theyre halo materials.
Here it is: http://segift.com/veiltoeternityld.zip