What the night sky looks like over San Luis Obispo, CA

San Luis Obispo's sky measures suburban edge here. 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 30.1% 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.

The nearest darker sky to San Luis Obispo

13 miles from San Luis Obispo, straight-line, sits Morro Bay, CA, the nearest city here with a darker sky than San Luis Obispo's own suburban edge band.

Morro Bay, CA 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 Obispo against the rest of the dataset

San Luis Obispo, CA counts roughly 49,729 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, San Luis Obispo ranks 961 from darkest to brightest, 1 being the darkest measured.