This is one of those spur of the moment shots, more of a practice than anything else. I have always liked it but if it were accurate may not. Since the noise doesn't register so much on the foreground it's really hard to tell the difference between stars and noise in the sky. There may be some banding going on and there was light pollution from the neighboring town. Thirty seconds with a small sensor, I assume that sky is mostly noise?
How to tell?