The most famous guide to the stars is now the most accessible! Generations of amateur astronomers have called it simply Nortons: the most famous star atlas in the world. Now in a beautifully redesigned two-color landmark 20th edition this combination star atlas & reference guide has no match in the field. First published in 1910 coinciding with the first of two appearances by Halleys Comet last century Nortons owes much of its legendary success to its unique maps arranged in slices or gores each covering Approx. one-fifth of the sky. Apart from being presented more accessibly than ever before the text & tables have been revised & updated to account for the new & exciting developments in our observation of the cosmos. The star maps themselves were plotted using advanced computer techniques yielding outstanding accuracy & legibility. Every heavenly object visible to the naked eye is included--stars to magnitude 6 star clusters & galaxies as well as other celestial objects. Presented with an authority that has stood for generations observation hints technical explanations & pointers to specialized information sources make this the only essential guide to the night sky. The updated & revised hardcover 20th edition also has new moon maps clearer tables new diagrams & a section on the latest computer driven telescopes--todays perfect home reference for curious minds from beginners to dedicated star gazers! What are people saying?.. . The unique & time-honored projection used in the Nortons star charts is particularly handy & has always been my favorite." --Professor Owen Gingerich Harvard-Smithsonian Center for Astrophysics " Once in a blue moon a book appears to dramatically & forever change its subject; in short the work becomes an indispensable resource for generations. Nortons Star Atlas is such a work." --Leif J. Robinson Editor Emeritus Sky & Telescope " Ian Ridpath is one of the most dedicated & prolific writers on astronomy. His works all have clarity & authority & he is ideally suited to infuse new life into a classic." --Martin Rees Astronomer Royal University of Cambridge author of Our Final Hour"