Sky and Telescope diagram
Information and the illustration come from the Sky and Telescope website. I've read the magazine since I was a kid and it's got to be the most accessible and entertaining media outlet in the natural sciences. Highly recommended.
We're living in a golden age of astronomy with discoveries coming at us like a meteor storm - a new planet, huge stellar explosion, massive black holes, comet landings and Pluto flybys! Luckily we have Sky and Telescope and its website and other sources such as APOD to help us keep up. Still, there's nothing like just going outside and looking up. Puts our relationship with place in big, beautiful perspective.