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Newtonian telescope
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noun
a reflecting telescope in which a mirror or reflecting prism is mounted on the axis near the eyepiece so that the image may be viewed from outside the telescope tube at right angles to the axis.
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Origin of Newtonian telescope
First recorded in 1755–65
Words nearby Newtonian telescope
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use Newtonian telescope in a sentence
British Dictionary definitions for Newtonian telescope
Newtonian telescope
noun
a type of astronomical reflecting telescope in which light is reflected from a large concave mirror, onto a plane mirror, and through a hole in the side of the body of the telescope to form an image
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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