Eris
A distant dwarf planet about as large as Pluto and more massive, iyo discovery yakatungamira ku definition of planet.
Render by the Local Solar System Foundation from a Solar System Scope texture (artist's impression) (CC BY 4.0)
Ini ndinoda kuti muverengi aone kuti Pluto inonzi sei, uye nei ichizivikanwa seplaneti.
Eris yakawanikwa muna 2005. Iyo ine orbit yakakwira uye ine hukuru hwakawanda, inotora kubva pa38 kusvika 98 AU kubva kuzuva, uye imwe orbit inoita makore anenge 560.
Iine huwandu hwakawanda hwemafuta kupfuura Pluto. Kuwana muviri wepasi uine simba kupfuura Neptune kwakatungamira International Astronomical Union kushandura zita rekuti “planet” muna 2006. Iyo inonzi Dysnomia, iyo yakaita kuti zvive nyore kuongorora masimba ayo.
Mamwe mapurojekiti
Zvigadzirwa uye zvidzidzo zvinoshandisa mamodheru akapusa ekudzidza chete. Hazvifanirwe kushandiswa kune yekufambisa, kumisikidza chiitiko kana chero chisarudzo chekushanda. Dzvanya pano kuti uwane ruzivo nezvezvinyorwa zvedzidzo