Concept information
Preferred term
Horizontal coordinate system
Definition
- The coordinate system based on the position of the observer. The horizontal plane is the fundamental plane and the coordinates are altitude and azimuth. (en)
Broader concept
Narrower concepts
- Altitude angle (en)
- Azimuth (en)
- Cardinal directions (en)
- Horizon (en)
- Meridian (en)
- Nadir (en)
- Vertical circle (en)
- Zenith (en)
- Zenith distance (en)
Entry terms
- Alt/Az coordinate system (en)
- az/el coordinate system (en)
- Horizon coordinate system (en)
- Horizon (horizon coordinate system) (en)
Editorial note
URI
http://astrothesaurus.org/uat/747
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