Iyini iplanethi eyi-dwarf?
Ngo-August 2006, i-International Astronomical Union (IAU) yachaza iplanethi eyi-dwarf njengenhlangano yasezulwini: - lizungeza ilanga, - inesisindo esanele sokuthatha ukuma kokulinganisela kwe-hydrostatic (cishe eyindilinga), - ayizange "ihlanze indawo ezungezile" ezungeze umjikelezo wayo, - akuyona isathelayithi.