In pictures that we find of galaxies and nebulas there are usually very bright colors in them. For example, if you look at a picture of the horsehead nebula you typically see pink, purple, red, orange and blue. Are those a real representation of how the nebula would appear to the naked eye? Also, if they are a real representation of how we see them... would you still be able to see those colors if you were in the nebula itself? I know this is a wierd question but I'd appreciate it if I could get an answer.