noun🔗Share小行星，asteroid An asteroid of any size"1979 Tsunami generation by pelagic planetoid impact"1979年由远海小行星撞击引发的海啸astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Share小行星，类行星体 An asteroid-like body in an orbit beyond the asteroid belt, such as a centaur or Kuiper belt object"Astronomers classify Eris, a distant object in the Kuiper belt, as a planetoid because it orbits the Sun far beyond Neptune. "天文学家将阋神星，这个柯伊伯带的遥远天体，归类为类行星体，因为它绕太阳运行的轨道远超过海王星。astronomyspacescienceChat with AIVocabulary GamePractice Reading
noun🔗Share小行星，矮行星。 A larger, planetary, body in orbit around the Sun, such as Vesta or (candidate) dwarf planets such Eris or Sedna"1991 Optimal trajectories for an ion driven spacecraft from earth to the planetoid Vesta"1991年，离子驱动宇宙飞船从地球到小行星灶神星的最佳轨道。astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Share矮行星，类行星。 A dwarf planet"Pluto is a planetoid, not a full-fledged planet. "冥王星是矮行星，而不是一颗完整的行星。astronomyspaceChat with AIVocabulary GamePractice Reading
