Discoverer of Pluto
During his youth, Tombaugh explored the heavens with homemade telescopes. Later he was hired by Lowell Observatory, Flagstaff, Arizona, and discovered Pluto, the outermost planet in our solar system, in 1930.
During his planet search, Tombaugh photographed 65 percent of the sky and spent 7,000 hours examining about 90 million star images. Besides Pluto, his discoveries included six star clusters, one cloud of galaxies, one comet and about 775 asteroids. Few astronomers have seen so much of the universe in such minute detail.
Dr. Tombaugh earned degrees from the University of Kansas and Northern Arizona University. He concluded his career as an astronomy professor at New Mexico State University.
Erected by Lions Club, Burdett American Legion. (Marker Number 109.)
Topics. This historical marker is listed in this topic list: Air & Space.
Credits. This page was last revised on November 17, 2020. It was originally submitted on November 17, 2020, by Mark Hilton of Montgomery, Alabama. This page has been viewed 128 times since then and 14 times this year. Photo 1. submitted on November 17, 2020, by Mark Hilton of Montgomery, Alabama.
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