Use star maps to learn about the universe!The SFA Star Charts are four maps representing the entire sky. The maps were created by Dr. Dan Brurton of Stephen A. Austin State Observatory, and can be downloaded at the following Internet site: http://observe.phy.sfasu.edu/The SFA Star Charts display most of the stars in the sky visible to unaided human vision under a dark, moon-free sky (down to magnitude 5), and also many of the interesting deep sky objects visible in small telescopes. In particula