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 | This article needs to be updated.(August 2021) |
| Location(s) | People's Republic of China |
|---|---|
| Organization | China National Space Administration  |
| Telescope style | optical telescope proposed building or structure |
| Diameter | 30 m (98 ft 5 in) |
The Chinese Future Giant Telescope is a proposed optical telescope with a primary mirror that has a 30-meter diameter. [1]
The Chinese Future Giant Telescope has a primary focal ratio of 1.2. Its primary mirror is segmented with 1020 annular submirrors arranged in 17 concentric annuli. Each segment has average length and width both of 0.8 m. Apart from a conventional Cassegrain focus, four Nasmyth foci on two double-deck platforms on both sides are also present. There is a Coudé focus provided for there interferometric array. The comparatively small secondary mirror is 2.74 m in diameter, which will serve active corrections. [1] Other characteristics include:
A primary mirror is the principal light-gathering surface of a reflecting telescope.
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The Special Astrophysical Observatory of the Russian Academy of Science is an astronomical observatory, set up in 1966 in the USSR, and now operated by the Russian Academy of Sciences. Based in the Bolshoi Zelenchuk Valley of the Greater Caucasus near the village of Nizhny Arkhyz, the observatory houses the BTA-6 and RATAN-600, an optical and radio telescope, respectively. The two instruments are about 20 km (12 mi) apart.
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