What the night sky looks like over Chicago Ridge, IL

Chicago Ridge's sky measures urban here. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. Only 93.6% of the 3,206 cities measured here read darker than Chicago Ridge.

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 Chicago Ridge is from a meaningfully darker sky

Worth, IL, about 1 miles away as the crow flies, measures in the suburban band, one step darker than Chicago Ridge. Actual driving distance will run longer than that straight-line figure.

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

Chicago Ridge against the rest of the dataset

Chicago Ridge, IL counts roughly 14,036 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Chicago Ridge ranks 2,985 from darkest to brightest, 1 being the darkest measured.