azimuthal mounting

azimuthal mounting

(ă-zim -ŭ-thăl) See altazimuth mounting.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Azimuthal Mounting

 

a telescope mounting having vertical and horizontal axes of rotation which allow the telescope to turn in azimuth and elevation in order to be set at the required point of the celestial sphere. To track a star which moves according to observable diurnal motion of the celestial sphere, it is necessary to rotate the telescope simultaneously about both axes at varying speeds. Azimuthal mounting is used in large-scale radiotelescopes. It was first used in telescopy in the USSR for a large 6–meter reflector.

N. N. MIKHEL’SON

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.