Matches in DBpedia 2015-10 for { ?s ?p "Leland Erskin Cunningham (February 19, 1904, in Wiscasset, Maine – May 31, 1989, in Richmond, California) was an American astronomer. In a career spanning 50 years, he became an authority on orbit theory and on precise measurements of the orbits of comets, planets, satellites, and space probes."@en }
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- Leland_Cunningham comment "Leland Erskin Cunningham (February 19, 1904, in Wiscasset, Maine – May 31, 1989, in Richmond, California) was an American astronomer. In a career spanning 50 years, he became an authority on orbit theory and on precise measurements of the orbits of comets, planets, satellites, and space probes.".