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In this book, Peter Manly surveys more than 150 unusual telescope designs. These are telescopes built by amateur and professional astronomers to suit some special need. There is, for instance, an inflatable telescope and one with a liquid mirror. Every so often a neglected design comes back into ...

This book is in Used condition

Features ruby-coated lenses for protection against UV rays and sun radiation. For day or night use. Rubber armored. Black. Magnification (mm) : 20 x 50, Strap: Yes, Case Included: Yes

Both beginning/novice amateur astronomers (at the level of Astronomy and Night Sky magazine readers) , as well as more advanced amateur astronomers (level of Sky & Telescope) will find this book invaluable and fascinating. Amateur astronomers are always contemplating the next telescope up and this ...

The Bushnell (r) Voyager (r) Sky Tour (tm) 76-mm telesclope gives amateur stargazers a pro-grade audio tour of the night sky. Its Illuminated Smart Mount points the way as the talking handset describes constellations and planets, and keeps you engaged with entertaining facts and mythology tidbits. ...

Pruner Telescope 6'-10' With Combo HD

Featuring high-quality Maksutov-Cassegrain optics, the Celestron (r) NexStar (r) 4SE is an ideal telescope for observing and photographing the wonders of space. The ultra portable 4 SE features a precision optical system with 1,325 mm focal length and is the first Maksutov system to ever feature ...

Portability and serious performance come together in the Celestron (r) NexStar 6 SE Schmidt-Cassegrain, high-performance altazimuth computerized telescope. With a total weight of 30-lbs including the tripod, the portable 6 SE features a precision optical system with 1500mm focal length (f/10) and ...

This book is in Used condition