DarkSkyCheck

Willoughby, OH Night Sky Brightness

What the night sky looks like over Willoughby, OH

Suburban
26.1 nW/cm2/sr

Satellite radiance puts Willoughby in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. That's brighter than 58.9% 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.

How far Willoughby is from a meaningfully darker sky

Eastlake, OH, about 1 miles away as the crow flies, measures in the suburban edge band, one step darker than Willoughby. Actual driving distance will run longer than that straight-line figure.

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

Willoughby against the rest of the dataset

Willoughby, OH has a population of about 24,208, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, Willoughby ranks 1,879 from darkest to brightest, 1 being the darkest measured, by the sampling the methodology guide documents.