Clarksville, IN Night Sky Brightness
How dark is the sky in Clarksville, IN?
Clarksville 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. Clarksville's sky is brighter than 94.2% of the 3,206 cities in this dataset.
Worth remembering: this is satellite radiance, not a ground observation. A true Bortle rating needs a human eye at night, this is the closest large-scale substitute, covered fully in the Bortle scale guide.
How far Clarksville is from a meaningfully darker sky
3 miles from Clarksville, straight-line, sits New Albany, IN, the nearest city here with a darker sky than Clarksville's own urban band.
New Albany, IN is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Clarksville against the rest of the dataset
About 22,041 people live in Clarksville, IN, sized enough to appear in this dataset of 3,206 incorporated US cities. Ranked against the other 3,206 cities here by the methodology guide's own sampling, Clarksville comes in at 3,002, darkest to brightest.