What the night sky looks like over O'Fallon, IL

O'Fallon reads as suburban edge on this dataset's scale. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 17% of the 3,206 cities measured here read darker than O'Fallon.

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.

Where to go for a darker sky near O'Fallon

Glen Carbon, IL, about 12 miles away as the crow flies, measures in the rural band, one step darker than O'Fallon. Actual driving distance will run longer than that straight-line figure.

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

O'Fallon against the rest of the dataset

About 32,169 people live in O'Fallon, IL, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, O'Fallon ranks 543 from darkest to brightest, 1 being the darkest measured.