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Clyde William Tombaugh / ˈ t ɒ m b aʊ / (February 4, 1906 – January 17, 1997) was an American astronomer. He discovered the ninth planet Pluto in 1930, the first object to be discovered in what would later be identified as the Kuiper belt .
Clyde Tombaugh was an American astronomer who discovered Pluto in 1930 after a systematic search for a ninth planet instigated by the predictions of other astronomers. He also discovered several clusters of stars and galaxies, studied the apparent distribution of extragalactic nebulae, and made.
- The Editors of Encyclopaedia Britannica
Jan 17, 1997 · December 3, 1954: Dr. Clyde W. Tombaugh, noted astronomer of White Sands Proving Ground. Tombaugh worked at the Lowell Observatory for 14 years until he was called for military service in 1943, teaching naval navigation for the U.S. Navy at Arizona State College for two years.
Jan 17, 1997 · Clyde Tombaugh was the only person in the 20th century to discover an object classified as a major planet orbiting the Sun. Tombaugh was the son of Muron and Della Tombaugh. The family moved to a farm near Burdett, Kansas in 1922 where Clyde attended high school.
Tombaugh's task was to systematically image the night sky in pairs of photographs, then examine each pair and determine whether any objects had shifted position. Using a blink comparator , he rapidly shifted back and forth between views of each of the plates to create the illusion of movement of any objects that had changed position or appearance between photographs.
Mar 23, 2002 · For nearly three-quarters of an hour, as he checked and crosschecked the moving pinpoint among the various plates, Clyde Tombaugh was the only person in the world to know that Planet “X” had ...
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Clyde William Tombaugh. 1906-1998. American astronomer who discovered the planet Pluto. Tombaugh helped Lowell Observatory director Vesto Slipher search for a new planet. The previous director, Percival Lowell, had suggested the possible location of a planet affecting the orbits of Uranus and Neptune.
