Highland, CA Night Sky Brightness
How dark is the sky in Highland, CA?
Highland's sky measures suburban edge here. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. Highland's sky is brighter than 35.1% 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.
How far Highland is from a meaningfully darker sky
The closest place in this dataset with a meaningfully darker sky is Calimesa, CA, roughly 11 miles away in a straight line, rated rural. Road distance will be more.
Calimesa, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Highland against the rest of the dataset
Highland, CA has a population of about 56,499, 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, Highland comes in at 1,119, darkest to brightest.