DarkSkyCheck

What the night sky looks like over Summerville, SC

Satellite radiance puts Summerville in the suburban edge band. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. That's brighter than 26.1% of the 3,206 US cities in this dataset.

The number comes from orbit, not a stargazer's logbook, so treat it as an estimate of sky glow rather than a certified Bortle class.

How far Summerville is from a meaningfully darker sky

The closest place in this dataset with a meaningfully darker sky is Charleston, SC, roughly 17 miles away in a straight line, rated rural. Road distance will be more.

Charleston, SC is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

Summerville against the rest of the dataset

Summerville, SC counts roughly 52,625 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Summerville ranks 833 from darkest to brightest, 1 being the darkest measured.