Nashua, NH Night Sky Brightness
Nashua, NH's night sky, measured from orbit
Nashua 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 51.1% of the 3,206 cities measured here read darker than Nashua.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things, explained in the Bortle scale guide.
How far Nashua is from a meaningfully darker sky
16 miles from Nashua, straight-line, sits Methuen, MA, the nearest city here with a darker sky than Nashua's own suburban band.
Methuen, MA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Nashua compares nationally
About 91,851 people live in Nashua, NH, sized enough to appear in this dataset of 3,206 incorporated US cities. Nashua's position, 1,628 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.