Santa Rosa, CA Night Sky Brightness
What the night sky looks like over Santa Rosa, CA
Santa Rosa's sky measures suburban here. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 58.7% of the 3,206 cities measured here read darker than Santa Rosa.
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 Bortle scale guide covers why.
Where to go for a darker sky near Santa Rosa
The closest place in this dataset with a meaningfully darker sky is Rohnert Park, CA, roughly 7 miles away in a straight line, rated suburban edge. Road distance will be more.
Rohnert Park, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Santa Rosa against the rest of the dataset
Santa Rosa, CA has a population of about 177,524, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Santa Rosa ranks 1,873 from darkest to brightest, 1 being the darkest measured, by the sampling the methodology guide documents.