Named in memory of Masahiro Aoki (1920–1984), amateur astronomer and director of the variablestar section of the Oriental Astronomical Association during 1969–1984. He contributed to the popularization of astronomy and to the protection of the natural environment and was active in fighting light pollution. (M 21135) _ _.
Discovered on 6-6-1991 in Kiyosato by Otomo, S., Muramatsu, O.