Grand Terrace, CA Night Sky Brightness
What the night sky looks like over Grand Terrace, CA
Satellite radiance puts Grand Terrace 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% of the 3,206 US cities in this dataset.
The number comes from orbit, not a stargazer's logbook, so treat it as an estimate of sky glow rather than a certified Bortle class - the Bortle scale guide covers why.
The nearest darker sky to Grand Terrace
4 miles from Grand Terrace, straight-line, sits Loma Linda, CA, the nearest city here with a darker sky than Grand Terrace's own suburban band.
Loma Linda, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Grand Terrace against the rest of the dataset
Grand Terrace, CA has a population of about 12,979, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Grand Terrace ranks 2,106 from darkest to brightest, 1 being the darkest measured, by the sampling the methodology guide documents.