Light Pollution in the United States
Good luck trying to view the night sky if you happen to live east of the Mississippi River!
Use the map above along with the Bortle Chart to estimate the darkness of the night sky where you live.
The Big Sky Astronomy Club encourages you to become active in the fight against light pollution.
It's harmful to the environment, it's bad for your health and it wastes incredibly shameful amounts of money and natural resources.
And, just as importantly, the beauty and inspiration that the night sky offers us makes it worthy of our efforts to preserve it.