Schmidt telescope

Schmidt camera

(Astronomy) a catadioptric telescope designed to produce a very sharp image of a large area of sky in one photographic exposure. It incorporates a thin specially shaped glass plate at the centre of curvature of a short-focus spherical primary mirror so that the resulting image, which is focused on a photographic plate, is free from spherical aberration, coma, and astigmatism

[C20: named after B. V. Schmidt (1879–1935), Estonian-born German inventor]

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Noun

Schmidt telescope - reflecting telescope that has plate that corrects for aberration so a wide area of sky can be photographed

Schmidt camera

reflecting telescope, reflector - optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece; "Isaac Newton invented the reflecting telescope in 1668"

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References in periodicals archive

While the AAT was in development, another instrument, the UK Schmidt Telescope (UKST) was built at Siding Spring in 1973, as an updated copy of the Palomar (now Oschin) Schmidt Telescope in California.

When Color Came from Down Under: Astronomy had to wait nearly 100 years before one astronomer popularized the color of the universe

A research team led by astronomers from National Astronomical Observatories of China (NAOC) made the discovery with the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST), a special quasi-meridian reflecting Schmidt telescope located in NAOC's Xinglong Observatory, in Hebei province.The telescope can observe about 4,000 celestial bodies at one time and has made a massive contribution to the study of the structure of the galaxy.Lithium is considered one of the three elements synthesised in the Big Bang, together with hydrogen and helium.

Lithium-rich giant star discovered

An apparently asteroidal 17th magnitude object discovered on CCD images taken with the LONEOS 0.59m Schmidt telescope on April 1.20 and posted on the NEOCP was found by other astrometric observers to be cometary on their CCD images.

The comets of 2001: Part 1

Beutler's work draws on data from a survey of more than 125,000 galaxies carried out with the UK Schmidt Telescope in eastern Australia.

How fast the Universe is expanding

An instrument outfitted with such a mirror and corrector plate is called a Schmidt telescope, or, since it is invariably used with a photographic plate rather than an eye receiving the light, a Schmidt camera.

Schmidt camera

Larger objective prisms have been made, including two for the 1.2-meter UK Schmidt Telescope in Australia.

75, 50 & 25 YEARS AGO

Discovered on 2012 Dec 9 by the Catalina Sky Survey using the 0.68m f/1.9 Schmidt telescope on Mount Bigelow, Arizona, 2012 XE54, a near-Earth asteroid (NEA) some 15-40 metres in size, was promptly predicted by Pasquale Tricarico of the Planetary Science Institute, Tucson, to undergo a partial eclipse by the Earth's shadow--observation of which would be a unique event.

Unique observations of a partial eclipse of an asteroid: 2012 XE54

Australian astronomer Robert McNaught discovered Comet McNaught-officially catalogued as C/2009 R1- last September using the using the 0.5-meter Uppsala Schmidt telescope and a CCD camera.

Newly discovered comet dazzles skywatchers with increasing brightness

Schmidt telescope near Coonabarabran, Australia, the astronomers spied six red bodies too faint to be seen in a single plate.

More brown dwarfs