英语词汇“Dobsonian”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

Dobsonian

释义

Dobsonian, a. and n. Astron.
Brit. |dɒbˈsəʊnɪən|, U.S. |dɑbˈsoʊniən|
[‹ the name of John Dobson (b. 1915), Chinese-born U.S. amateur astronomer, who developed the telescope + -ian suffix.]
A. adj. Designating or relating to a sturdy, inexpensive form of Newtonian telescope with a large aperture and short focal length, used especially by amateur astronomers for deep-sky work. Also: designating the altazimuth mount for such a telescope.
[1980Sky & Telescope 58 410/3 (caption) Ken Miller of the Pacific Science Center in Seattle chose to make a Dobson altazimuth mounting for the 40-cm (16-inch) Newtonian.]1980Sky & Telescope 60 138/1 (advt.) Odyssey 1 13.1{pp}f/4.5 Dobsonian type deep-sky telescope.1991Astronomy Dec. 16/2 The Dobsonian revolution offers a potential solution, but has been applied mostly to large apertures of 8 inches and above.1996Sci. Amer. June 12/2 Another observer peers through a six-foot-long cylinder resting in an odd cradle that Stern calls a Dobsonian mount: ‘It's much cheaper and easier to build than the standard equatorial mount.’
B. n. A Dobsonian telescope.
1980Sky & Telescope 60 138/1 (advt.) Build your own Dobsonian.1996SkyNews Mar.–Apr. 25/2 Built or assembled, there is one Newtonian design that has become the overwhelming favourite: the Dobsonian, named after Californian John Dobson, the first to popularize it in the 1970s.1998Sky & Telescope Mar. 14/3 Starparty organizers need protection from being taken to the cleaners when someone..falls off a ladder while looking through the eyepiece of a big Dobsonian.

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