Holladay, UT Night Sky Brightness
How dark is the sky in Holladay, UT?
Holladay 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. Holladay's sky is brighter than 21.2% 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.
The nearest darker sky to Holladay
Alpine, UT, about 14 miles away as the crow flies, measures in the rural band, one step darker than Holladay. Actual driving distance will run longer than that straight-line figure.
Alpine, UT is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Holladay against the rest of the dataset
About 30,588 people live in Holladay, UT, 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, Holladay comes in at 678, darkest to brightest.