altazimuth coordinate system


Also found in: Encyclopedia.
Related to altazimuth coordinate system: Equatorial coordinate system

altazimuth coordinate system

n.
A celestial coordinate system in which an object's position in the sky is described in terms of its altitude and azimuth. Because the altazimuth coordinate system is based on an observer's position rather than on features fixed on the celestial sphere, it is often the most practical system for use in navigation and surveying.