Named in honor of Makoto Tosa (1944– ), a professor at Tohoku University, known for his research on galaxies. He has served as vice president of Astronomical Society of Japan and as a member of the advisory councils of both the National Astronomical Observatory and the Sendai Astronomical Observatory. He encourages and assists the activities of amateur astronomers in the Sendai Astronomical Society and the volunteer group “Utyu-sen” (Space Ship), which popularizes astronomy for children and laymen. (M 34624) _ _.