I live about 20 miles south of downtown Denver, Colorado. I have the advantage of living on a hill at 1880 metres and the dry semi-desert air of Colorado. Unfortunately, I also have about 2 million neighbors who love their lights. Deer, rabbits, coyotes, owls, hawks and bull snakes are frequent visitors. One has to be vigilant to not come across a rattlesnake in the summer. Faint comets (magnitude 18-21) are what I prefer to try to find and image, especially if they are near Messier and NGC objects.