This is a procedural Star sky and volume creator that I made for this nebula render I did: https://www.artstation.com/artwork/28W1Ny
With this system you can generate particle systems either on a dome, hemisphere or in the volume of an object to get proceduralyl generated stars. It is also possible to give the stars random colors with their material to replicate the natural color variations you get from stars in the universe based on their age.
Works in both Evee and Cycles.
Tips * You can animate a dome of stars to rotate like a real night sky, however to animate the stars moving you have to convert the particle system, no need to convert if not animating the stars themselves. * Putting a camera in the middle of a star sphere/dome and setitng the camera to panoramic and equiractangular in the panoramic type, setting the render size to 8k (1920x1080 at 800%), and saving the image as an 32bit exr, will give you your own starry sky hdri. * Use the dome only when you have to, working with a sphere is much easier * I have duplicates of systems for Evee and cycles but they are mostly interchangable.
Append from the Star Systems collection