Selma, TX Night Sky Brightness
Selma, TX: how dark is the sky here?
Satellite radiance puts Selma in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. That's brighter than 66.8% of the 3,206 US cities in this dataset.
This comes from a satellite measuring light radiating upward, not a person's eyes on the ground, so it isn't the same as a Bortle class, though the two track each other closely - see the Bortle scale guide for where they can disagree.
How far Selma is from a meaningfully darker sky
Cibolo, TX, about 6 miles away as the crow flies, measures in the suburban edge band, one step darker than Selma. Actual driving distance will run longer than that straight-line figure.
Cibolo, 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 Selma compares nationally
Selma, TX has a population of about 11,900, one of 3,206 US cities of 10,000 or more residents in this dataset. Selma places 2,132 of 3,206 cities in this dataset's darkest-to-brightest order, ranked by the method in the methodology guide.