Henderson, KY: how dark is the sky here?
Satellite radiance puts Henderson in the suburban band. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 58% of the 3,206 cities measured here read darker than Henderson.
This comes from a satellite measuring light radiating upward, not a person's eyes on the ground, so it isn't the same as a Bortle class, though the two track each other closely.
Where to go for a darker sky near Henderson
Vincennes, IN, about 58 miles away as the crow flies, measures in the suburban edge band, one step darker than Henderson. Actual driving distance will run longer than that straight-line figure.
Vincennes, IN is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
How Henderson compares nationally
Henderson, KY counts roughly 27,750 residents, among the 3,206 US cities this site tracks. Henderson places 1,850 of 3,206 cities in this dataset's darkest-to-brightest order.