is a Japanese astronomer and a prolific discoverer of asteroids. Between 1991 and 1998, he discovered 52 minor planets in collaboration with fellow observer Shohei Suzuki at Mount Nyukasa Station. Both astronomers are graduates of Waseda University, after which they named the asteroid 9350 Waseda in 1991. Hirasawa is also a teacher.
List of discovered minor planets 6416 Nyukasayama 14 November 1993 6499 Michiko 27 October 1992 6918 Manaslu 20 March 1993 7028 Tachikawa 5 December 1993 7067 Kiyose 4 December 1993 7353 Kazuya 6 January 1995 7891 Fuchie 11 November 1994 7892 Musamurahigashi 27 November 1994 8100 Nobeyama 4 December 1993 8200 Souten 7 January 1994 8530 Korbokkur 25 October 1992 8551 Daitarabochi 11 November 1994 8702 Nakanishi 14 November 1993 9197 Endo 24 November 1992 9350 Waseda 13 October 1991 9386 Hitomi 5 December 1993 10171 Takaotengu 7 March 1995 10617 Takumi 25 October 1997 10837 Yuyakekoyake 6 March 1994 13162 Ryokkochigaku 22 October 1995 14036 Yasuhirotoyama 5 March 1995 14037 Takakikasahara 5 March 1995 14425 Fujimimachi 13 October 1991 14495 Kazuakiwatanabe 6 January 1995 9 November 1997 22 October 1993 11 November 1994 22 October 1993 14 November 1993 3 February 1995 25 October 1997 7 March 1995 5 March 1995 14 March 1994 19254 Shojitomoko 11 November 1994 26 October 1995 22385 Fujimoriboshi 14 March 1994 26 October 1995 25 October 1997 22 November 1993 27827 Ukai 9 December 1993 27 December 1998 3 February 1995 11 November 1994 6 January 1995 6 January 1995 35371 Yokonozaki 25 October 1997 6 January 1995 5 December 1993 26 October 1995 25 October 1997 14 November 1993 Co-discovery made with: S. Suzuki
References Planet Named After High School Where Discoverer Taught (2004). Financial Times Ltd. Retrieved 2009-04-14.
See also