Spartanburg, SC Night Sky Brightness
How dark is the sky in Spartanburg, SC?
Spartanburg's sky measures urban here. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. Spartanburg's sky is brighter than 95.1% 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.
The nearest darker sky to Spartanburg
Greer, SC, about 17 miles away as the crow flies, measures in the suburban band, one step darker than Spartanburg. Actual driving distance will run longer than that straight-line figure.
Greer, SC is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Spartanburg against the rest of the dataset
About 39,606 people live in Spartanburg, SC, 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, Spartanburg comes in at 3,031, darkest to brightest.