enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. RC Optical Systems - Wikipedia

   en.wikipedia.org/wiki/RC_Optical_Systems

   The smallest RCOS telescope, the 12.5 inch F/9 Ritchey-Chrétien had a base price of just over twenty thousand US dollars in 2009, with large and/or custom models costing considerably more. RC Optical Systems and Star Instruments won a lawsuit in 2008 against Meade Instruments over Meade's description of RCX400 and LX200R telescopes and the ...

3. Questar Corporation - Wikipedia

   en.wikipedia.org/wiki/Questar_Corporation

   See duplex option below. This was first offered for sale in May 1956. A 3.5" Duplex, optically and mechanically identical to the Standard, but which included a simple way of detaching the telescope from the open fork mount to allow the optical tube assembly (OTA) to be used as a 1240 mm at f12 telephoto lens. This variant has been in production ...

4. Meade LX200 - Wikipedia

   en.wikipedia.org/wiki/Meade_LX200

   The Meade LX200 is a family of commercial telescopes produced by Meade Instruments launched in 1992 with 8" (20.32 cm) and a 10" (25.4 cm) Schmidt–Cassegrain models on computerized altazimuth mounts. [1] [2] Two larger models, a 12" (30.48 cm) and a 16" (40.64 cm), quickly

5. Meade LX90 - Wikipedia

   en.wikipedia.org/wiki/Meade_LX90

   The Meade LX90 is a Schmidt-Cassegrain design of telescope made by Meade Instruments for the mid-priced (2000 USD circa 2008) commercial telescope market. [1] [2] It uses a similar optical system to the bigger and more expensive Meade LX200 [2] —although it lacks some useful functions like primary mirror locking.

6. Celestron - Wikipedia

   en.wikipedia.org/wiki/Celestron

   A range of 2.4 to 6-inch (150 mm) refractor telescopes. 6 to 10-inch (250 mm) traditional reflector telescopes on German equatorial mounts. SkyScout – an astronomical sky finder or a personal planetarium. Digital, Biological, and Stereo viewing microscopes; Binoculars and Spotting scopes; Various mounts

7. List of large optical telescopes - Wikipedia

   en.wikipedia.org/wiki/List_of_large_optical...

   Irenee du Pont Telescope: 2.54 m (100 in) Single: USA: Las Campanas Observatory, Coquimbo Region, Chile: 1976 Hooker 100-Inch Telescope: 2.54 m (100 in) Single: USA: Mt. Wilson Observatory, California, USA: 1917 Kawkasskaja gornaja observatory GAISCH MGU: 2.5 m (98.4 in) Single: Russia: Caucasian mountain observatory , Russia: 2014 SOFIA: 2.5 m ...

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. List of largest optical telescopes in the 19th century

   en.wikipedia.org/wiki/List_of_largest_optical...

   The main material used early on for reflecting telescope mirrors was speculum metal, which reflected only about two-thirds of the incident light, and which tarnished, requiring maintenance. Two-element refracting telescopes were extensively used in 19th century observatories despite their smaller apertures than metal, and later glass, mirror ...