William Sheehan has been an amateur astronomer most of his life, and is a leading historian of astronomy, with twenty-books to his name, including Planets and Perception, Worlds in the Sky, The Planet Mars, and (with Dale P. Cruikshank) Discovering Pluto, all published by University of Arizona Press. A current member of the International Astronomical Union’s Working Group of Planetary System nomenclature, he has received a Guggenheim Fellowship for astronomy writing and is a recipient of the Gold Medal of the Oriental Astronomical Association. The Main Belt Asteroid 16037 Sheehan was named in his honor.