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astronomical telescope

American  

noun

  1. a telescope having an objective with a long focal length and an eyepiece with a short focal length, usually used for observing celestial bodies.


astronomical telescope British  

noun

  1. any telescope designed and mounted for use in astronomy. Such telescopes usually form inverted images See Cassegrain telescope Newtonian telescope equatorial mounting

"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

Etymology

Origin of astronomical telescope

First recorded in 1880–85

Example Sentences

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See Examples For:

This innovative method allows a single astronomical telescope to function as a detector for GW signals.

From Science Daily Jun. 5, 2024

It has a concave mirror which concentrates heat rays as the mirror of an astronomical telescope concentrates light.

From Time Magazine Archive

Through the lenses of the world's first astronomical telescope, four white spots were clearly visible floating near a brightly shining planet.

From Time Magazine Archive

Galileo had close ties with Holland, and his first astronomical telescope was an improvement of a spyglass of Dutch design.

From "Cosmos" by Carl Sagan

Such an instrument is known as a compound or astronomical telescope, and the first lens is called the object glass and the second lens the magnifying glass, or eye-piece.

From Wireless Transmission of Photographs Second Edition, Revised and Enlarged 1919 by Martin, Marcus J.

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