What the night sky looks like over San Luis, AZ

San Luis reads as suburban edge on this dataset's scale. 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 32.1% 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.

Where to go for a darker sky near San Luis

The closest place in this dataset with a meaningfully darker sky is Somerton, AZ, roughly 8 miles away in a straight line, rated rural. Road distance will be more.

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

San Luis against the rest of the dataset

San Luis, AZ has a population of about 40,064, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, San Luis ranks 1,023 from darkest to brightest, 1 being the darkest measured.