Intensity of Night Lights in the United States: Map

White = 100% most intense night light saturation

Red = 90% night light saturation

Orange = 80% night light saturation

Yellow = 70% night light saturation

Green = 50% night light saturation

Blue = 20% night light saturation

Black = no night light saturation

Regions in black make the most optimum areas for stargazing and astronomy.

A map of the worst light pollution in the U.S.:

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