Emmaus, PA Night Sky Brightness
How dark is the sky in Emmaus, PA?
Emmaus reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 46.1% of the 3,206 cities measured here read darker than Emmaus.
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.
Where to go for a darker sky near Emmaus
39 miles from Emmaus, straight-line, sits Pottsville, PA, the nearest city here with a darker sky than Emmaus's own suburban band.
Pottsville, PA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Emmaus against the rest of the dataset
Emmaus, PA has a population of about 12,314, one of 3,206 US cities of 10,000 or more residents in this dataset. Ranked against the other 3,206 cities here by the methodology guide's own sampling, Emmaus comes in at 1,471, darkest to brightest.