Concept information
Preferred term
horizontal coordinate system
Definition
- The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles: altitude and azimuth. Therefore, the horizontal coordinate system is sometimes called as the az/el system, the alt/az system, or the alt-azimuth system, among others. In an altazimuth mount of a telescope, the instrument's two axes follow altitude and azimuth. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Horizontal_coordinate_system)
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URI
http://data.loterre.fr/ark:/67375/MDL-WLMGH1WH-V
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