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This is a list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes . This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time.
This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.
m Aper. in Mirror type Nationality / Sponsors Site Built Large Binocular Telescope (LBT) 11.9 m (8.4 m×2) 330" × 2: Multiple mirror, 2: USA, Italy, Germany: Mount Graham International Obs., Arizona, USA: 2004 Hobby–Eberly Telescope (HET) (11 m × 9.8 m mirror) 10 m: 394" Segmented, 91: USA, Germany: McDonald Observatory, Texas, USA: 1997 ...
In 2004, Meade acquired Coronado Filters from founder and designer David Lunt, [21] [22] who produce an extensive range of specialty telescopes that allow views of the sun in Hydrogen-Alpha, and formerly, at Calcium K line wavelengths. The Meade Coronado telescopes are called "Solarmax 40" or higher depending on the model. Coronado Personal ...
The Astroscan was a wide-field 4 + 1 ⁄ 8 in (10 cm) clear-inch diameter reflecting telescope, originally produced by the Edmund Scientific Corporation, that was for sale from 1976 to 2013. Design [ edit ]
Overwhelmingly Large Telescope; Alternative names: OWL : Organization: European Southern Observatory Wavelength: 0.32 μm (940 THz)–12 μm (25 THz) Telescope style: Cassegrain reflecting telescope optical telescope Diameter: 60, 100 m (196 ft 10 in, 328 ft 1 in) Collecting area: 2,827, 7,854 m 2 (30,430, 84,540 sq ft) Focal length