How dark is the sky in Gloucester, MA?

Gloucester's sky measures rural here. Little local light dome. Most stars are visible; the Milky Way is faint but often findable away from town lights. Only 2.4% of the 3,206 cities measured here read darker than Gloucester.

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 Gloucester is from a meaningfully darker sky

57 miles from Gloucester, straight-line, sits Fitchburg, MA, the nearest city here with a darker sky than Gloucester's own rural band.

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

Gloucester against the rest of the dataset

Gloucester, MA counts roughly 30,491 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Gloucester ranks 79 from darkest to brightest, 1 being the darkest measured.