Horizontal vs Altazimuth - What's the difference?
horizontal | altazimuth |
perpendicular to the vertical; parallel to the plane of the horizon; level, flat.
(marketing) Relating to horizontal markets.
(archaic) Pertaining to the horizon.
* 1667': As when the Sun new ris'n / Looks through the '''Horizontal misty Air — John Milton, ''Paradise Lost , Book 1, ll. 594-5
A telescope or surveying instrument that has a mount permitting both horizontal and vertical rotation