How dark is the sky in Vacaville, CA?

Satellite radiance puts Vacaville in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Vacaville's sky is brighter than 84.7% of the 3,206 cities in this dataset.

Worth remembering: this is satellite radiance, not a ground observation. A true Bortle rating needs a human eye at night, this is the closest large-scale substitute.

The nearest darker sky to Vacaville

The closest place in this dataset with a meaningfully darker sky is Suisun City, CA, roughly 8 miles away in a straight line, rated suburban edge. Road distance will be more.

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

Vacaville against the rest of the dataset

About 103,994 people live in Vacaville, CA, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, Vacaville ranks 2,701 from darkest to brightest, 1 being the darkest measured.