Don's Testing Zone
Saturday, November 7, 2009  

 
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 dferren@aristotle.net
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 Astronomy: Equipment
Intro | Observations | Equipment | Messier Field Guide | Home   

Sears Reflector Telescope
40mm/1.6" Newtonian Reflector

My first telescope given to me for Christmas when I was 14 years old or so. I used it off and on for a few years, mostly observing Jupiter, Venus and the Moon.
40mm/1.57" aperture, 630mm focal length

Meade TeleStar DS-2130AT
127mm/5" Newtonian Reflector

This thing is so huge I keep expecting it to probe the world's oceans for whales and upon not finding any, start destroying the Earth with it's own weather.

Has the Autostar computer keypad for fast and easy set up, with automatic tracking and GOTO. Aluminized and multi-coated primary mirror and matching elliptical flat secondary mirror (diameter=127mm, 1000mm focal length, f/8); rack and pinion focuser with .965” and 2” eyepiece holders; single fork DS-2000 altazimuth mount; full length adjustable field tripod with aluminum legs; accessory tray; 494 Autostar control system with over 1400 object database; battery pack for 8 AA size (user supplied) batteries; PC-compatible astronomy software; 5x24 viewfinder with bracket; three eyepieces (.965”) – H25mm, H12.5mm and SR4mm for magnifications of 40X, 80X, 250X; 3X Barlow lens. Yahoo Group for Meade DS Telescopes

Celestron NexStar 114GT
114mm/4.5" Newtonian Reflector

Carolaina won this scope at the 2006 Ark-La-Tex star party. It has an actual focal length of 500mm, but the built-in barlow lens gives it an apparent 1000mm focal length. This works out to f/10 speed. It came with 25mm and 10mm eyepieces which gives 40x and 100x, respectively. The GoTo computer control seems much more user-friendly than it's Meade counterpart. Unfortunately, it's the only way to position it--there is no manual control. The tripod is extremely cheap and flimsy. It should be a great little scope for star parties, though.