Dobsonianadj.n.

Brit.

/dɒbˈsəʊnɪən/, U.S.

/dɑbˈsoʊniən/

Origin: From a proper name, combined with an English element. Etymons: proper name Dobson , -ian suffix.

Etymology: < the name of John Lowry Dobson (1915–2014), Chinese-born U.S. amateur astronomer, who developed the telescope + -ian suffix.

Astronomy.

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.

ΘΚΠ

the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [adjective] > telescope > other telescopes

Galilean1728

dialytic1839

coudé1888

autocollimating1898

Keplerian1909

double-barrelled1955

Dobsonian1980

1979 Sky & Telescope Nov. 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.]

1980 Sky & Telescope Aug. 138/1 (advt.) Odyssey 1 13.1″f/4.5 Dobsonian type deep-sky telescope.

1991 Astronomy Dec. 16/2 The Dobsonian revolution offers a potential solution, but has been applied mostly to large apertures of 8 inches and above.

1996 Sci. 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.

ΘΚΠ

the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > astronomical telescopes

stellascope1661

Schmidt camera1934

Schmidt1939

Maksutov–Cassegrain1958

Maksutov1970

Nasmyth–Cassegrain1972

Schmidt telescope1978

Dobsonian1980

1980 Sky & Telescope Aug. 138/1 (advt.) Build your own Dobsonian.

1996 SkyNews Mar. 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.

1998 Sky & 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.

This is a new entry (OED Third Edition, September 2002; most recently modified version published online June 2022).

单词	dobsonian
释义	Dobsonianadj.n. Brit. /dɒbˈsəʊnɪən/, U.S. /dɑbˈsoʊniən/ Origin: From a proper name, combined with an English element. Etymons: proper name Dobson , -ian suffix. Etymology: < the name of John Lowry Dobson (1915–2014), Chinese-born U.S. amateur astronomer, who developed the telescope + -ian suffix. Astronomy. 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. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [adjective] > telescope > other telescopes Galilean1728 dialytic1839 coudé1888 autocollimating1898 Keplerian1909 double-barrelled1955 Dobsonian1980 1979 Sky & Telescope Nov. 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.] 1980 Sky & Telescope Aug. 138/1 (advt.) Odyssey 1 13.1″f/4.5 Dobsonian type deep-sky telescope. 1991 Astronomy Dec. 16/2 The Dobsonian revolution offers a potential solution, but has been applied mostly to large apertures of 8 inches and above. 1996 Sci. 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. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > astronomical telescopes stellascope1661 Schmidt camera1934 Schmidt1939 Maksutov–Cassegrain1958 Maksutov1970 Nasmyth–Cassegrain1972 Schmidt telescope1978 Dobsonian1980 1980 Sky & Telescope Aug. 138/1 (advt.) Build your own Dobsonian. 1996 SkyNews Mar. 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. 1998 Sky & 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. This is a new entry (OED Third Edition, September 2002; most recently modified version published online June 2022). < adj.n.1980
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