Kraft served as director of the Lick Observatory ( 1981 -- 1991 ) , president of the American Astronomical Society ( 1974 -- 1976 ) , and president of the International Astronomical Union ( 1997 -- 2000 ) .
He also served as director of the Lick Observatory ( 1981 -- 1991 ) , president of the American Astronomical Society ( 1974 -- 1976 ) , and president of the International Astronomical Union ( 1997 -- 2000 ) .