Derby, KS's night sky, measured from orbit

Derby reads as suburban edge on this dataset's scale. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. That's brighter than 19.5% of the 3,206 US cities in this dataset.

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

How far Derby is from a meaningfully darker sky

The closest place in this dataset with a meaningfully darker sky is Yukon, OK, roughly 144 miles away in a straight line, rated rural. Road distance will be more.

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

How Derby compares nationally

About 26,604 people live in Derby, KS, sized enough to appear in this dataset of 3,206 incorporated US cities. Derby places 622 of 3,206 cities in this dataset's darkest-to-brightest order.