Tombaugh


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Tom·baugh

 (tŏm′bô′), Clyde William 1906-1997.
American astronomer who discovered Pluto (1930).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Tombaugh

(ˈtɒmbəʊ)
n
(Biography) Clyde William. 1906–97, US astronomer, who discovered (1930) the dwarf planet Pluto
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Tom•baugh

(ˈtɒm bɔ)

n.
Clyde William, 1906–97, U.S. astronomer: discovered the planet Pluto 1930.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Noun1.Tombaugh - United States astronomer who discovered the planet Pluto (1906-1997)
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References in periodicals archive ?
These point northwest to Tombaugh 1, one of the open clusters Clyde Tombaugh discovered while searching for trans-Neptunian planets.
But as astronomers found more small bodies between Mars and Jupiter, these were reclassified as "minor planets" distinct from the eight "major planets." In 1930 Clyde Tombaugh discovered Pluto, and the count went back up to nine.
I know that skilled observers like Clyde Tombaugh, Walter Scott Houston, and Steve Albers long ago saw Sirius B with 6-inch, or even smaller, telescopes.
The orchestra will be joined by four vocalists: soprano Katherine Weber, mezzo-soprano Kate Tombaugh, tenor James Judd and baritone Sam Handley, as well as the 100-voice Northwest Indiana Symphony Chorus.
At the heart of the city's legacy is the Lowell Observatory, where the solar system's outermost planet Pluto was discovered by Clyde Tombaugh back in 1930.
1930: American astronomer Clyde Tombaugh discovered the planet Pluto from a series of pictures taken the previous month at Lowell Observatory.
1930: American astronomer Clyde Tombaugh discovered the (now minor) planet Pluto from a series of pictures taken the previous month at Lowell Observatory.
At the heart of the research is the nitrogen-rich ice in Sputnik Planitia, a large glacier that forms the left lobe of the bright Tombaugh Regio feature on Pluto's surface.
So I did a search in my library and located a copy of Tony Simon's The Search for Planet X, a book about Clyde Tombaugh's discovery of Pluto, which I'd read in 1965.
One of the most prominent features on Pluto is Tombaugh Regio, a heart-shaped area that covers a large portion of the southern hemisphere and creeps north.