You can still see stars THROUGH the sun from Nyrius F-6 and several other sectors in Nyrius and Helios.

Maybe they're just really bright stars?
:P

I think this has something to do with the fact that the glow of the system's sun is separate from the skybox. Maybe it's an issue with some cards?
I'll look tonite if you remind me, RL. Nyrius you say?

I've looked just now, and no stars show through the sun, though there are some close to the corona.

They were shining really bright, trying to impress "roguelazer", maybe?