kuiper belt object n any of many minor planets in the Kuiper belt outside the orbit of Neptune at the edge of the solar system Synonym(s) Kuiper belt object KBO
News & Articles kuiper belt object The size and shape of the oblong dwarf planet Haumea We use thermal radiometry and visible photometry to constrain the size, shape, and albedo of the large Kuiper belt object Haumea. Feb. 21, 2014 - SpaceRef