Wilsonville, OR Night Sky Brightness
How dark is the sky in Wilsonville, OR?
Wilsonville reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 84.2% of the 3,206 cities measured here read darker than Wilsonville.
Worth remembering: this is satellite radiance, not a ground observation. A true Bortle rating needs a human eye at night, this is the closest large-scale substitute, covered fully in the Bortle scale guide.
How far Wilsonville is from a meaningfully darker sky
The closest place in this dataset with a meaningfully darker sky is West Linn, OR, roughly 7 miles away in a straight line, rated suburban edge. Road distance will be more.
West Linn, OR is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Wilsonville against the rest of the dataset
Wilsonville, OR has a population of about 27,895, one of 3,206 US cities of 10,000 or more residents in this dataset. Ranked against the other 3,206 cities here by the methodology guide's own sampling, Wilsonville comes in at 2,683, darkest to brightest.