9844 Otani (1989 WF1) is a main-belt asteroid discovered on November 23, 1989 by Yoshio Kushida and Osamu Muramatsu at the Yatsugatake South Base Observatory. It was named in honor of Toyokazu Otani (1928- ), first lecturer at the Gotoh Planetarium and Astronomical Museum in Tokyo, where he worked for 32 years until 1988. His deep knowledge of acoustics and classical music was instrumental in establishing the well-known BMG sound system, appreciated by planetarium audiences. Otani is also known as an eminent observer of the planets.