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Clyde William Tombaugh / ˈtɒmbaʊ / (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. At the time of discovery, Pluto was considered a planet, but was reclassified as a dwarf planet in 2006.
Clyde Tombaugh (born February 4, 1906, Streator, Illinois, U.S.—died January 17, 1997, Las Cruces, New Mexico) 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 ...
- The Editors of Encyclopaedia Britannica
Aug 15, 2015 · On February 18, 1930, at only 24 years of age, Clyde Tombaugh made a historic discovery. A young astronomer fascinated with the stars, Tombaugh found what was then believed to be the 9th planet of our solar system. Clyde Tombaugh (second from left) with his family at their farm in Kansas in 1935, five years after his discovery of Pluto.
- Briana Jones
Mar 15, 2024 · The observatory building housing the 13-inch telescope where Tombaugh discovered Pluto. Lowell Observatory. Clyde sent sketches of the planets Mars and Jupiter that he had taken with his nine-inch telescope to Lowell observatory, seeking feedback about telescope making and a constructive critique of his observations.
Feb 18, 2022 · On February 18, 1930, Tombaugh compared photos of a single star field – taken six days apart a few weeks earlier – and noticed an object was moving against the backdrop of stars. It was a ...
Clyde Tombaugh: the astronomer who discovered Pluto | BBC Sky at Night Magazine.
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Jan 17, 1997 · Awards Council member Dr. Glenn T. Seaborg presents the Academy’s Golden Plate Award to Clyde W. Tombaugh, eminent astronomer who discovered Pluto, at 1991 American Academy of Achievement Summit in New York City. From 1955 until his retirement in 1973, Clyde Tombaugh was on the faculty at New Mexico State University in Las Cruces.
