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ESA Data Ontology

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Concept information

... > Observational astronomy > Astronomical techniques > Astrometry > Astronomical coordinate systems > Equatorial coordinate system > Hour angle

Preferred term

Hour angle  

Definition

  • A telescope based coordinate specifying the angle, in the equatorial plane, from the meridian to a plane containing the celestial object and the north and south celestial poles. (en)

Broader concept

Contributor

Editorial note

URI

http://astrothesaurus.org/uat/755

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