William Sheehan is a retired psychiatrist, who moved to Flagstaff from Minnesota in 2016. He is also an amateur astronomer, astronomical historian and writer, whose many books are mainly concerned with the bodies of the Solar System, including the Moon. He has written "Epic Moon" co-authored by Thomas A. Dobbins, an authoritative history of lunar mapping. Sir Arthur C. Clarke called it “an extraordinary work of scholarship, which I am sure covers the ground so thoroughly that no one need ever go there again!” He has also written "Space Training in Northern Arizona" co-authored by Kevin Schindler, about the pivotal roles Flagstaff played in the Apollo moon program. His most recent books are “Discovering Pluto” co-authored by Dale Cruikshank, published by University of Arizona Press, and "Jupiter, Mercury, and Saturn" for the Kosmos series (England).
Among current projects is a book on Mars with Jim Bell (ASU). Sheehan is a member of the IAU’s Working Group on Solar System nomenclature, a past Guggenheim fellow, and a recipient of the Gold Medal of the Oriental Astronomical Association. Asteroid 16037, discovered at Lowell Observatory, has been named Sheehan in his honor.
His new book is "Discovering Pluto: Exploration at the Edge of the Solar System."