Lockport, IL Night Sky Brightness
What the night sky looks like over Lockport, IL
Lockport's sky measures suburban here. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 63.4% of the 3,206 cities measured here read darker than Lockport.
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 Bortle scale guide covers why.
The nearest darker sky to Lockport
Homer Glen, IL, about 4 miles away as the crow flies, measures in the suburban edge band, one step darker than Lockport. Actual driving distance will run longer than that straight-line figure.
Homer Glen, IL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Lockport against the rest of the dataset
Lockport, IL has a population of about 26,915, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Lockport ranks 2,022 from darkest to brightest, 1 being the darkest measured, by the sampling the methodology guide documents.