coelostat

English

Alternative forms

• cælostat, caelostat (rare)
• cœlostat

Etymology

Related to Latin coelestis (“sky”), corrupted form of caelestis, +‎ -stat.

Noun

coelostat (plural coelostats)

1. (astronomy) A device that rotates a telescope so as to keep its orientation constant with relation to the stars.