Henry E. Holt

Henry Holt (right) with Jack Schmitt at the Arizona Bank Building
Minor planets discovered: 689 [1]
see § List of discovered minor planets

Henry E. Holt (27 September 1929 - 5 May 2019)[2] was an American astronomer and prolific discoverer of minor planets and comets, who has worked as a planetary geologist at the United States Geological Survey and Northern Arizona University.[3]

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