Photoelectric Guiding Device

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Photoelectric Guiding Device

 

in astronomy, a photoelectric accessory that automatically guides a telescope. Such a device automatically keeps in the telescope’s field of view an observed heavenly body that is moving because of the apparent diurnal rotation of the celestial sphere or that is actually moving relative to the fixed stars.

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