Shot this as 30 sec exposure F5, and ISO 1600. Looking South from the Aguirre Springs Campgrand towards El Paso/Juarez metro area where approximately 3,000,000 people live. Noticed the contrast between the Milky Way and the incoming thin clouds. The photo shows diffenence in color contrast from the dirty yellow of Sodium Vapor street lights to the pure white light of the averaged stars in the outer arm of our own galaxy. Shot was take from the BLM Aguirre Springs Campground just East of Las Cruces NM.