I've been looking at some of the astronomy pictures of the day from NASA. They all have content that is indicative of certain situations or events. Supernovas have the scattered lines look, new stars all seem to be blue, dust (I assume) takes the color of stars behind it, etc. Is there a resource that I can use that will explain all of the known colors and shapes given by these structures in space?
Say I wanted to program a simulator to create images similar to these, I would need to know what causes the colors, the shapes, etc. I know there are infinite possibilities, but there are definitely repeated themes like the ones I mentioned.
I get that some of these are false color, but that's irrelevant to me, the false colors usually mean something anyway, so just ignore the fact of there being false color.