Carlisle, PA: how dark is the sky here?

Carlisle's sky measures suburban edge here. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Only 36.7% of the 3,206 cities measured here read darker than Carlisle.

This comes from a satellite measuring light radiating upward, not a person's eyes on the ground, so it isn't the same as a Bortle class, though the two track each other closely.

How far Carlisle is from a meaningfully darker sky

111 miles from Carlisle, straight-line, sits St. Marys, PA, the nearest city here with a darker sky than Carlisle's own suburban edge band.

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

How Carlisle compares nationally

About 22,517 people live in Carlisle, PA, sized enough to appear in this dataset of 3,206 incorporated US cities. Carlisle places 1,174 of 3,206 cities in this dataset's darkest-to-brightest order.