Named in honor of Tarmo Oja, professor in astronomy at Uppsala University working on galactic structure and variable stars. During the last few years he has also enthusiastically participated in photometric observations of (4) Vesta and (10) Hygiea at both Kvistaberg and La Palma. (M 20522) _ _.
Discovered on 2-3-1976 in Kvistaberg by Lagerkvist, C.-I.