Orange, CA's night sky, measured from orbit

Orange reads as urban on this dataset's scale. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. Orange's sky is brighter than 92% of the 3,206 cities in this dataset.

Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things.

The nearest darker sky to Orange

4 miles from Orange, straight-line, sits Santa Ana, CA, the nearest city here with a darker sky than Orange's own urban band.

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

How Orange compares nationally

Orange, CA has a population of about 137,941, one of 3,206 US cities of 10,000 or more residents in this dataset. Orange places 2,934 of 3,206 cities in this dataset's darkest-to-brightest order.