equatorial mounting

British

noun

an astronomical telescope mounting that allows motion of the telescope about two mutually perpendicular axes, one of which is parallel to the earth's axis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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He invented the transit instrument, mural circle, equatorial mounting for telescopes, and most of the other principal instruments now in use in observatories.

From Pioneers of Science by Lodge, Oliver, Sir

He therefore made a special provision that $1000 extra, to be repaid by him, should be expended in making a rough equatorial mounting in which he could test the instrument.

From The Reminiscences of an Astronomer by Newcomb, Simon

The mechanical parts of this great telescope are by Warner and Swasey of Cleveland, after the well-known equatorial mounting of the Melbourne reflector by Grubb of Dublin.

From Astronomy: The Science of the Heavenly Bodies by Todd, David Peck

This alteration and the new equatorial mounting have been admirably made by Grubb; the result is completely successful.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various

Fig. 44 shows such a telescope, or rather two telescopes, one photographic, the other visual, supported side by side upon the same equatorial mounting.

From A Text-Book of Astronomy by Comstock, George C.

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