equatorial mounting

noun

1. 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

Example Sentences

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

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No part of the equatorial mounting is shown in the figure, as it resembles in every respect the usual Fraunhofer mounting.

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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.

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

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The equatorial mounting.—Telescopes are of all sizes, from the modest opera glass which may be carried in the pocket and which requires no other support than the hand, to the giant which must have a special roof to shelter it and elaborate machinery to support and direct it toward the sky.

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