Designations: 1997 AD7, 1929 TC, 1971 HD, 1980 XL1, 1980 YU, 1991 NM9
Osao Shigehisa (b. 1936) has actively observed variable stars since 1952. An enthusiastic recorder of the activities of Japanese amateur astronomers, he played an important role in compiling a History of Amateur Astronomy in Japan in 1987, as well as a sequel in 1994. He has been a member of the Royal Astronomical Society of Canada.
Reference: MPC 62353