DarkSkyCheck

What the night sky looks like over Belmont, CA

Satellite radiance puts Belmont in the suburban edge band. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. That's brighter than 26.5% 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 nearest darker sky to Belmont

Redwood City, CA, about 4 miles away as the crow flies, measures in the rural band, one step darker than Belmont. Actual driving distance will run longer than that straight-line figure.

Redwood City, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

Belmont against the rest of the dataset

Belmont, CA counts roughly 27,132 residents, among the 3,206 US cities this site tracks. Among all 3,206 cities here, Belmont ranks 848 from darkest to brightest, 1 being the darkest measured.