3C catalogue of radio sources

E397270

astronomical catalogue radio source catalogue scientific dataset

The 3C catalogue of radio sources is a pioneering astronomical catalog that systematically lists and characterizes strong radio-emitting objects in the sky, greatly advancing the study of radio galaxies and quasars.

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All labels observed (3)

Label	Occurrences
Third Cambridge Catalogue of Radio Sources	5
3C catalogue of radio sources canonical	1
Fourth Cambridge Catalogue of Radio Sources	1

How this entity was disambiguated

This entity first appeared as the object of triple T3908045 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: 3C catalogue of radio sources
Context triple: [Martin Ryle, knownFor, 3C catalogue of radio sources]

A. IRAS Point Source Catalog
The IRAS Point Source Catalog is a comprehensive listing of infrared-emitting astronomical objects detected by the Infrared Astronomical Satellite, widely used for studies of stars, galaxies, and interstellar dust.
B. AllWISE Source Catalog
The AllWISE Source Catalog is a comprehensive astronomical database of infrared-detected celestial sources produced from the Wide-field Infrared Survey Explorer (WISE) mission’s all-sky survey.
C. Zwicky catalog of galaxies
The Zwicky catalog of galaxies is an influential astronomical catalog compiled by Swiss astronomer Fritz Zwicky that systematically lists and classifies thousands of galaxies and galaxy clusters.
D. Revised Shapley–Ames Catalog of Bright Galaxies
The Revised Shapley–Ames Catalog of Bright Galaxies is a major astronomical catalog that systematically lists and classifies the brightest galaxies in the sky, serving as a foundational reference for extragalactic research.
E. Hickson Compact Group catalogue
The Hickson Compact Group catalogue is an astronomical listing of small, densely packed groups of galaxies identified and compiled by Paul Hickson for the study of galaxy interactions and evolution.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: 3C catalogue of radio sources
Target entity description: The 3C catalogue of radio sources is a pioneering astronomical catalog that systematically lists and characterizes strong radio-emitting objects in the sky, greatly advancing the study of radio galaxies and quasars.

A. IRAS Point Source Catalog
The IRAS Point Source Catalog is a comprehensive listing of infrared-emitting astronomical objects detected by the Infrared Astronomical Satellite, widely used for studies of stars, galaxies, and interstellar dust.
B. AllWISE Source Catalog
The AllWISE Source Catalog is a comprehensive astronomical database of infrared-detected celestial sources produced from the Wide-field Infrared Survey Explorer (WISE) mission’s all-sky survey.
C. Zwicky catalog of galaxies
The Zwicky catalog of galaxies is an influential astronomical catalog compiled by Swiss astronomer Fritz Zwicky that systematically lists and classifies thousands of galaxies and galaxy clusters.
D. Revised Shapley–Ames Catalog of Bright Galaxies
The Revised Shapley–Ames Catalog of Bright Galaxies is a major astronomical catalog that systematically lists and classifies the brightest galaxies in the sky, serving as a foundational reference for extragalactic research.
E. Hickson Compact Group catalogue
The Hickson Compact Group catalogue is an astronomical listing of small, densely packed groups of galaxies identified and compiled by Paul Hickson for the study of galaxy interactions and evolution.
F. None of above. chosen

Statements (44)

Predicate	Object
instanceOf	astronomical catalogue ⓘ radio source catalogue ⓘ scientific dataset ⓘ
abbreviation	3C ⓘ
alsoKnownAs	Third Cambridge Catalogue of Radio Sources ⓘ linked to: 3C catalogue of radio sources
catalogueNumberingScheme	prefix 3C followed by source number ⓘ
compiledBy	Cavendish Laboratory, University of Cambridge ⓘ linked to: Cavendish Laboratory
contains	active galactic nuclei ⓘ planetary nebulae ⓘ quasars ⓘ radio galaxies ⓘ supernova remnants ⓘ
contributedTo	identification of radio galaxies as extragalactic objects ⓘ recognition of quasars as a distinct class of active galactic nuclei ⓘ
coordinateSystem	equatorial coordinates ⓘ
countryOfOrigin	United Kingdom ⓘ
dataType	basic source classifications ⓘ radio flux measurements ⓘ sky positions of radio sources ⓘ
field	astrophysics ⓘ radio astronomy ⓘ
historicalSignificance	one of the earliest extensive radio source catalogues ⓘ
impact	crucial for discovery and characterization of quasars ⓘ pioneered systematic study of extragalactic radio sources ⓘ provided key targets for optical identification of radio sources ⓘ
influenced	3CR catalogue ⓘ subsequent radio source catalogues ⓘ
language	English ⓘ
notableEntry	3C 196 ⓘ 3C 273 ⓘ 3C 286 ⓘ 3C 295 ⓘ 3C 48 ⓘ
notableFor	listing some of the brightest radio sources in the sky ⓘ
publicationDecade	1950s ⓘ
purpose	support study of quasars ⓘ support study of radio galaxies ⓘ systematic listing of strong radio-emitting objects in the sky ⓘ
relatedTo	Cambridge radio surveys ⓘ linked to: Cambridge radio source surveys
selectionCriterion	radio flux density ⓘ
usedFor	calibration of radio telescopes ⓘ cosmological tests with radio sources ⓘ statistical studies of radio source populations ⓘ
wavelengthRange	meter-wavelength radio frequencies ⓘ

How these facts were elicited