Astronomical Tower
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Astronomical Tower
an enclosure that houses a telescope. In order not to transmit possible vibrations to the telescope, a separate foundation that does not touch the tower’s walls and overhead cover is constructed for it. The lower levels of the tower are often used for laboratories and other auxiliary purposes; the telescope is set up in the upper, unheated level. The roof of small towers either rolls back or slides apart. Large astronomical towers are furnished with rotating hemispherical domes with an opening slit through which astronomical observations are made. The exterior of modern astronomical towers is sheathed with sun-shielding deflectors.
N. N. MIKHEL’SON
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.