An extremely easy to use accessory that helps you learn the location of constellations, bright stars, and many deep-sky objects such as nebulas, galaxies, and star clusters | Simply dial in the date and time across the top, and StarTarget shows you the sky overhead | A perfect accessory and great learning tool for use with your telescope, binocular, or even unaided eyes | Designed for use within 30 degrees North and 50 degrees North latitudes regardless of calendar year - shows locations of 100 star clusters, nebulas and galaxies for viewing with binoculars or telescope | Made of coated, dew-resistant cardboard with a clear plastic window