Fifth Cambridge Catalog Of Radio Sources
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The 5C Survey of Radio Sources (5C) is an
astronomical catalogue An astronomical catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, Galaxy morphological classification, morphology, origin, means of detection, or method of discovery. The olde ...
of celestial radio sources as measured at 408 MHz and 1407 MHz. It was published in a number of parts between 1975 and 1995 by the Radio Astronomy Group of the
University of Cambridge The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, wo ...
. The
One-Mile Telescope The One-Mile Telescope at the Mullard Radio Astronomy Observatory (MRAO), Cambridge, UK is an array of radio telescopes (two fixed and one moveable, fully steerable parabolic reflectors operating simultaneously at 1407 MHz and 408  ...
used to produce this catalogue had an
angular resolution Angular resolution describes the ability of any image-forming device such as an Optical telescope, optical or radio telescope, a microscope, a camera, or an Human eye, eye, to distinguish small details of an object, thereby making it a major det ...
of 80
arcseconds A minute of arc, arcminute (abbreviated as arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of a degree. Since one degree is of a turn, or complete rotation, one arcminute is of a tu ...
and 23
arcseconds A minute of arc, arcminute (abbreviated as arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of a degree. Since one degree is of a turn, or complete rotation, one arcminute is of a tu ...
at 408 MHz and 1407 MHz respectively, and catalogued radio sources as faint as 2 milli-
Jansky The jansky (symbol Jy, plural ''janskys'') is a non- SI unit of spectral flux density, or spectral irradiance, used especially in radio astronomy. It is equivalent to 10−26 watts per square metre per hertz. The ''spectral flux density'' ...
s, considerably fainter than any previously catalogued radio source. References to entries in this catalogue use the prefix 5C followed by the catalogue part, a "." and then the entry number, with no space perforce; ''i.e.'', 5C12.311 for the 311th entry in part 12 of the 5C catalogue.


External links

The 5C catalogue is publicly available:
Publication describing the catalogue

Data access to the 5C Survey
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