Alamo, TX Night Sky Brightness
Alamo, TX's night sky, measured from orbit
Satellite radiance puts Alamo in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 71.4% of the 3,206 cities measured here read darker than Alamo.
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.
The nearest darker sky to Alamo
5 miles from Alamo, straight-line, sits Pharr, TX, the nearest city here with a darker sky than Alamo's own suburban band.
Pharr, TX is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Alamo compares nationally
Alamo, TX has a population of about 20,694, one of 3,206 US cities of 10,000 or more residents in this dataset. Alamo's position, 2,277 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.