Shun-ei Izumikawa

Shun-ei Izumikawa (泉川 俊英, Izumikawa Shun'ei) is a Japanese astronomer and co-discoverer of 5239 Reiki and 27748 Vivianhoette, two main-belt asteroids he first observed together with astronomer Osamu Muramatsu at the Yatsugatake South Base Observatory (896) near Hokuto, Yamanashi, in 1990 and 1991.^[1]

Minor planets discovered: 2^[1]

5239 Reiki	November 14, 1990	MPC[1]
27748 Vivianhoette	January 9, 1991	MPC[1]
1 with O. Muramatsu

The asteroids were named for Japanese amateur astronomer Reiki Kushida and American Vivian Hoette from the U.S. Yerkes Observatory, respectively.^[2][3]