Named for the northern island of Japan, which has a population of 5.5 million. This planet was the first to be discovered in Hokkaido. In addition to Kushiro {see planet (4096)}, there are active programs in Sapporo {see planet (3473)} and Kitami {see planet (3785)} concerned with the astrometric observations of minor planets and comets. (M 12976) _ _.
Discovered on 28-10-1987 in Kushiro by Ueda, S., Kaneda, H.