Named in honor of Shigeru Morikubo (1913– ), since 1930 an amateur astronomer, observer of variable stars, sunspots, meteors and occultations, and a pioneer in observing meteoric dust. Since 1955 he has been continuing to study meteoric dust through his medical microscope. In 1967 he became the first chairman of the Japan Amateur Astronomers’ Convention, and he continues to edit a history of amateur astronomy in Japan. (M 29147) _ _.