. "American astronomer" . "1966Z"^^ . "1878Z"^^ . "1966-03-16Z"^^ . "Joel Stebbins"@en . "1878-07-30Z"^^ . "1878-06-30Z"^^ . "Joel Stebbins (July 30, 1878 \u2013 March 16, 1966) was an American astronomer who pioneered photoelectric photometry in astronomy. He was director of the University of Illinois Observatory from 1903 to 1922 where he performed innovative work with the selenium cell. In 1922 he became director of the Washburn Observatory at the University of Wisconsin\u2013Madison where he remained until 1948."@en . . "Stebbins, Joel"@en . . .