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BEST TELESCOPE DEAL FOR BEGINNERS: Those who are taking baby steps in the astronomy world will benefit from the Celestron AstroMaster 70AZ Telescope — $125.99 $185.95 (Save $59.96)BEST COMPACT ...
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There are a dizzying number of telescopes out there. These expert-selected models from Celestron, Orion and others are a great place to start your search. The Best Telescopes For Observing Our ...
Beginner telescopes: Altazimuth mounts are cheap and simple to use. Dobsonian telescopes : John Dobson popularized a simplified altazimuth mount design for Newtonian reflectors because of its ease of construction; Dobson's innovation was to use non-machined parts for the mount that could be found in any hardware store such as plywood , formica ...
Telescopes can be classified by optical design or mechanical design/construction. Telescopes can also be classified by where they are placed, such as space telescopes. One major determining factor is type of light, or particle being observed including devices referred to as "telescopes" that do not form an image or use optics.
Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7] The primary innovation Celestron/Tom Johnson devised was a method to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve ...
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