Hilliard, OH Night Sky Brightness
Hilliard, OH's night sky, measured from orbit
Satellite radiance puts Hilliard in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Hilliard's sky is brighter than 71.7% 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, explained in the Bortle scale guide.
How far Hilliard is from a meaningfully darker sky
5 miles from Hilliard, straight-line, sits Upper Arlington, OH, the nearest city here with a darker sky than Hilliard's own suburban band.
Upper Arlington, OH is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Hilliard compares nationally
Hilliard, OH counts roughly 38,832 residents, among the 3,206 US cities this site tracks. Hilliard's position, 2,285 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.