What the night sky looks like over Sonoma, CA

Sonoma'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 22.2% 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 Sonoma

The closest place in this dataset with a meaningfully darker sky is Hercules, CA, roughly 21 miles away in a straight line, rated rural. Road distance will be more.

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

Sonoma against the rest of the dataset

Sonoma, CA counts roughly 10,606 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Sonoma ranks 708 from darkest to brightest, 1 being the darkest measured.