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

newton, Newtonian, newtonian constant of gravitation, Newtonian fluid, Newtonian mechanics, Newtonian telescope, Newton, Isaac, newton-meter, Newton's cradle, Newton's law of gravitation, Newton's laws of motion

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for Newtonian telescope

Williams did it with me several times, for instance when I mentioned the Hubble Space Telescope.
The Stacks: Robin Williams, More Than A Shtick Figure|Joe Morgenstern|August 16, 2014|DAILY BEAST
The instrument is attached to the Anglo-Australian Telescope at the Siding Spring Observatory, northwest of Sydney, Australia.
SAMI Is Like Google Earth for the Universe|Matthew R. Francis|July 27, 2014|DAILY BEAST
The Swift telescope is designed to detect any amount of extra high-energy light, then turn to locate the source.
The Gamma-Ray Burst That Wasn’t|Matthew R. Francis|June 1, 2014|DAILY BEAST
If you live in a place with a dark night sky, you might be able to see M31 without a telescope.
The Gamma-Ray Burst That Wasn’t|Matthew R. Francis|June 1, 2014|DAILY BEAST

But the results coming out of BOSS are beautiful, even if the telescope is hideous.
Using Black Holes to Measure Dark Energy, Like a BOSS|Matthew R. Francis|April 13, 2014|DAILY BEAST
Another crash, which nearly shut up his spine like a telescope, told him that there were no wings.
The Giant of the North|R.M. Ballantyne
To spy out the land with a naval telescope over a mile of sea means taking a lot on trust as we learned to our cost on April 25th.
Gallipoli Diary, Volume I|Ian Hamilton
These instruments were of a simple nature, for the magnifying glass was not yet contrived, and so the telescope was impossible.
Outlines of the Earth's History|Nathaniel Southgate Shaler
With the telescope somewhere near a hundred million are brought within the limits of vision.
Outlines of the Earth's History|Nathaniel Southgate Shaler
He put his canvas telescope down, and placed a heavy foot on it for safety.
Scattergood Baines|Clarence Budington Kelland

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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Newtonian telescope

noun

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Origin of Newtonian telescope

Words nearby Newtonian telescope

Example sentences from the Web for Newtonian telescope

British Dictionary definitions for Newtonian telescope

noun