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Concept information

... > Observational astronomy > Astronomical techniques > Astrometry > Astronomical coordinate systems > Horizontal coordinate system > Zenith

Preferred term

Zenith  

Definition

  • The point on the celestial sphere directly above the observer's head, opposite to the direction in which gravity acts. Opposite of nadir. (en)

Broader concept

Contributor

Editorial note

URI

http://astrothesaurus.org/uat/1838

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