Prospect Heights, IL Night Sky Brightness
Prospect Heights, IL's night sky, measured from orbit
Satellite radiance puts Prospect Heights 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 25.4% of the 3,206 cities measured here read darker than Prospect Heights.
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.
The nearest darker sky to Prospect Heights
Wauconda, IL, about 16 miles away as the crow flies, measures in the rural band, one step darker than Prospect Heights. Actual driving distance will run longer than that straight-line figure.
Wauconda, 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 Prospect Heights compares nationally
Prospect Heights, IL counts roughly 15,566 residents, among the 3,206 US cities this site tracks. Prospect Heights's position, 810 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.