How dark is the sky in Moraga, CA?

Satellite radiance puts Moraga in the rural band. Little local light dome. Most stars are visible; the Milky Way is faint but often findable away from town lights. Moraga's sky is brighter than 5.9% 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.

How far Moraga is from a meaningfully darker sky

Truckee, CA, about 147 miles away as the crow flies, measures in the dark sky band, one step darker than Moraga. Actual driving distance will run longer than that straight-line figure.

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

Moraga against the rest of the dataset

About 16,698 people live in Moraga, CA, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, Moraga ranks 188 from darkest to brightest, 1 being the darkest measured.