Billy ( September 25 , 1918 -- May 3 , 2011 ) whose friends called him " William Pendry Bidelman " , was an American astronomer .
Billy Billy ( 25 September 1918 - 3 May 2011 ) , whose friends called him " William Pendry Bidelman " , was an American astronomer .
Billy Billy ( 25 September 1918 - 3 May 2011 ) , whose friends called him " William Pendry Bidelman " , was an American astronomer .
Write a paraphrased version of the sentence: Billy ( September 25 , 1918 -- May 3 , 2011 ) whose friends called him " William Pendry Bidelman " , was an American astronomer . Output: