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  1. 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 .

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  2. Apr 11, 2024 · 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.

    • The Editors of Encyclopaedia Britannica
  3. Clyde William Tombaugh (February 4, 1906 – January 17, 1997) was an American astronomer. He discovered Pluto in 1930.

  4. Feb 15, 2013 · Unimpressed with store-bought telescopes, Tombaugh constructed his first telescope at the age of 20, grinding the mirrors himself. Over the course of his life, he would build more than 30...

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  5. Feb 16, 2021 · He was inducted into the International Space Hall of Fame in 1980. He died on January 17, 1997, in Las Cruces, New Mexico, at age 90. A small portion of his ashes was placed aboard the New Horizons spacecraft, which was launched on January 19, 2006 and flew past Pluto on July 14, 2015.

  6. 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.

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  8. In rural Kansas, Clyde Tombaugh, a young farm boy and amateur astronomer built his own nine-inch telescope with a hand-crafted mirror and discarded parts from farm equipment. With his telescope he viewed the skies and made sketches of details on the planets.

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