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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. Reflecting telescope - Wikipedia

   en.wikipedia.org/wiki/Reflecting_telescope

   A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century by Isaac Newton as an alternative to the refracting telescope which, at that time, was a design that suffered from severe chromatic ...

4. Meade Instruments - Wikipedia

   en.wikipedia.org/wiki/Meade_Instruments

   The Meade Instruments (also shortened to Meade) was an American multinational company headquartered in Watsonville, California, that manufactured, imported and distributed telescopes, binoculars, spotting scopes, microscopes, CCD cameras, and telescope accessories for the consumer market. [2]

5. List of largest optical telescopes historically - Wikipedia

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

   A. A. Common's 60-inch Ealing reflector [10] 1.524 m: 60" glass mirror reflector: World's largest glass mirror reflector 1889, sold to Harvard 1904, moved to South Africa 1920s (Boyden Observatory) where it was largest telescope in the southern hemisphere. Ealing, Harvard College Observatory, Cambridge, Massachusetts, USA;Boyden Observatory ...

6. Astroscan - Wikipedia

   en.wikipedia.org/wiki/Astroscan

   [2] [3] Rather than using a more traditional equatorial or altazimuth mount the Astroscan features a spherical housing around the primary reflector which sat in a cast aluminum cradle. The design was durable and allowed for simple operation by novice amateur astronomers; it won an Industrial Design Award in 1976. [ 1 ]

7. List of radio telescopes - Wikipedia

   en.wikipedia.org/wiki/List_of_radio_telescopes

   Radio optical Telescope with 54 m Spherical Reflector Antenna and 2.6 m optical telescope on the same axis. One of the most sensitive and low noise antennas in the world. Operating during 1987-2010. Conserved from 2015. It is planned to revitalize it in 2020-2025 by the force of Armenian and International science-technical society.