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2. Orion Telescopes & Binoculars - Wikipedia

   en.wikipedia.org/wiki/Orion_Telescopes_&_Binoculars

   Orion ED120 apo refractor on Orion's Sirius EQ-G "GoTo" and GPS equipped German equatorial mount with portable 12 volt power supply. Orion sold a range of telescopes that they characterize as "beginner", "intermediate" or "advanced", including Newtonians, Maksutovs, Schmidt-Cassegrains, Ritchey-Chrétiens and refractors with or without (sold as optical tube assemblies or "OTA") a variety of ...

3. Orion (space telescope) - Wikipedia

   en.wikipedia.org/wiki/Orion_(space_telescope)

   The Orion 1 space astrophysical observatory was installed in the orbital station Salyut 1. It was designed by Grigor Gurzadyan of Byurakan Observatory in Armenia , USSR . It was operated in June 1971 by crew member Viktor Patsayev , who thus became the first man to operate a telescope outside the Earth's atmosphere.

4. Astrophotography - Wikipedia

   en.wikipedia.org/wiki/Astrophotography

   The telescope used by Berkowski was attached to 6 + 1 ⁄ 2-inch (17 cm) Königsberg heliometer and had an aperture of only 2.4 in (6.1 cm), and a focal length of 32 in (81 cm). Commencing immediately after the beginning of totality, Berkowski exposed a daguerreotype plate for 84 seconds in the focus of the telescope, and on developing an image ...

5. List of the largest optical telescopes in North America

   en.wikipedia.org/wiki/List_of_the_largest...

   30 cm (12") achromat: Massachusetts, USA New York, USA: 1900 1852 University of Illinois Observatory: 30 cm (12") achromat: Urbana, Illinois, USA: 1896 Merz und Mahler (Mitchell cupola), Cincinnati Observatory: 28 cm (11") achromat: Cincinnati, Ohio, USA: 1843 Fraunhofer Refractor, United States Naval Observatory (Foggy Bottom) 24.4 cm (9.6 ...

6. 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

7. 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!

8. Samuel Oschin telescope - Wikipedia

   en.wikipedia.org/wiki/Samuel_Oschin_Telescope

   The Samuel Oschin telescope (/ ˈ ɔː ʃ ɪ n /), also called the Oschin Schmidt, is a 48-inch-aperture (1.22 m) Schmidt camera at the Palomar Observatory in northern San Diego County, California, United States. It consists of a 49.75 inches (1.264 m) Schmidt corrector plate and a 72 inches (1.8 m) (f/2.5) mirror. The instrument is strictly a ...

9. Meade ETX telescope - Wikipedia

   en.wikipedia.org/wiki/Meade_ETX_telescope

   The ETX started out as a 90 mm (3-1/2") Maksutov Cassegrain telescope (first produced in 1996) and took advantage of high volume mass production and simplified optical and parts construction to open a new market for a cheap alternative to the very expensive Questar 3-1/2 Maksutov Cassegrain [1] [2] The ETX "line" has been expanded to 105 mm, and 125 mm Maksutov Cassegrains and achromatic ...