What the night sky looks like over Frederick, CO

Satellite radiance puts Frederick in the rural band. Little local light dome. Most stars are visible; the Milky Way is faint but often findable away from town lights. That's brighter than 10.7% 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.

How far Frederick is from a meaningfully darker sky

21 miles from Frederick, straight-line, sits Evans, CO, the nearest city here with a darker sky than Frederick's own rural band.

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

Frederick against the rest of the dataset

Frederick, CO has a population of about 17,937, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Frederick ranks 342 from darkest to brightest, 1 being the darkest measured.