a telescope having an objective with a long focal length and an eyepiece with a short focal length, usually used for observing celestial bodies.
Five English Words That Are Utterly UniqueRead more in this article about some frequently asked questions and fun facts related to our definitions.
A Word Problem in Tonight’s Meteor ShowerTonight’s meteor shower has an anachronistic name. It was originally named after the constellation Quadrans Muralis, discovered by Jerome Lalande in 1795. Well, “discover” may be the wrong word. Today, the International Astronomical Union no longer recognizes this constellation, rather the stars that were a part of it are now considered to be parts of other, more widely recognized constellations. Lalande named the constellation “Quadrans Muralis” after …
- astronomical clock,
- astronomical distance,
- astronomical frame of reference,
- astronomical refraction,
- astronomical triangle,
- astronomical twilight,
- astronomical unit,
- astronomical year,
Origin of astronomical telescope
First recorded in 1880–85
Also called Kepler telescope.
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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