What the night sky looks like over Oswego, IL

Oswego reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 58.8% of the 3,206 cities measured here read darker than Oswego.

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.

The nearest darker sky to Oswego

The closest place in this dataset with a meaningfully darker sky is Yorkville, IL, roughly 5 miles away in a straight line, rated suburban edge. Road distance will be more.

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

Oswego against the rest of the dataset

Oswego, IL counts roughly 38,778 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Oswego ranks 1,876 from darkest to brightest, 1 being the darkest measured.