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3C Objects
3C may refer to: In astronomy: * 3C, the ''Third Cambridge Catalogue of Radio Sources'', an astronomical reference series In business: * 3C Records * 3C (radio), a defunct digital radio station * 3C (trade association), an American trade association. * Three-cent piece * Long March 3C, a 2008 Chinese orbital rocket * Team 3C Casalinghi Jet Androni Giocattoli, a defunct Italian professional cycling team * 3C, the former IATA code for defunct American airline RegionsAir * The IATA code for Air Chathams In computing: * Three Cs (Compulsory, Capacity, and Conflict), three categories of CPU cache#Cache_miss, CPU cache misses * An abbreviation often used in Taiwan for "computer, communication, and consumer electronics" * Computer Control Company, Inc., a pioneering minicomputer company (1953–1966) * Agile software development, Agile model: 3C (Card, Conversation, Confirmation) In genetics: * Alpha-tubulin 3C, a human gene * 3C, or Chromosome conformation capture, a technique used in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Third Cambridge Catalogue Of Radio Sources
The Third Cambridge Catalogue of Radio Sources (3C) is an astronomical catalogue of celestial radio sources detected originally at 159 MHz, and subsequently at 178 MHz. History 3C The catalogue was published in 1959 by members of the Cavendish Astrophysics Group, Radio Astronomy Group of the University of Cambridge. Entries in the catalogue are identified by the prefix "3C" followed by the entry number, with a space - for example, 3C 273. The number denotes objects in order of increasing right ascension. The catalogue was produced using the Cambridge Interferometer on the west side of Cambridge. The interferometer had previously been used for the Second Cambridge Catalogue of Radio Sources (2C) survey, published in 1955. 3CR The catalogue was subsequently revised by Bennett in 1962 using observations at 178 MHz, and for many years '3CR' was considered as the definitive listing of the brighter radio sources in the Northern Hemisphere. The revision resulted in a num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |