Alsip, IL's night sky, measured from orbit

Alsip reads as urban on this dataset's scale. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. Only 94.3% of the 3,206 cities measured here read darker than Alsip.

Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things.

The nearest darker sky to Alsip

3 miles from Alsip, straight-line, sits Palos Heights, IL, the nearest city here with a darker sky than Alsip's own urban band.

Palos Heights, 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 Alsip compares nationally

About 18,486 people live in Alsip, IL, sized enough to appear in this dataset of 3,206 incorporated US cities. Alsip places 3,007 of 3,206 cities in this dataset's darkest-to-brightest order.