Centralia, IL Night Sky Brightness
Centralia, IL's night sky, measured from orbit
Satellite radiance puts Centralia in the suburban edge band. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 41.1% of the 3,206 cities measured here read darker than Centralia.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things, explained in the Bortle scale guide.
Where to go for a darker sky near Centralia
35 miles from Centralia, straight-line, sits Highland, IL, the nearest city here with a darker sky than Centralia's own suburban edge band.
Highland, IL is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Centralia compares nationally
Centralia, IL has a population of about 11,787, one of 3,206 US cities of 10,000 or more residents in this dataset. Centralia's position, 1,311 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.