system
Given the following post, respond as if you're commenting on Reddit:
human
Could you see a nebula at night if you lived on planet inside it?

If you lived on a planet that was orbiting a star that formed inside a nebula, would you still see black space at night like here on earth, or are nebulae dense enough to be illuminated by a star inside them?
gpt
Faintly, if there was no light pollution.

The surface brightness of an object doesn't change with distance. From our view on Earth the Orion Nebula is a faint grey smudge, easily washed out by urban light pollution. If we were closer, it would just be a *larger* faint grey smudge. Inside it, there'd be this vague background glow across the whole sky, brighter in some spots and fainter in others. No colour visible to the human eye.