The 20-cm Schmidt-Cassegrain Telescope: A Practical Observing Guide

The 20-cm (8-in) Schmidt-Cassegrain telescope is the most popular telescope in the world. This compact instrument revolutionized amateur astronomy and astrophotography, and more than ten thousand are purchased each year. Manly, a devotee and keen user of the Schmidt-Cassegrain, takes the telescope owner, in easy stages, through all aspects of using the telescope. He starts with techniques for viewing the Moon, then takes the observer through our planetary system, and on to the deep sky, whe...