Cubewano
A Cubewano is a Kuiper belt object ( Kuiper Belt Object, KBO), that the sun at a distance 41-50 astronomical units encircled and no orbital resonance with the outer planet has. This as a classical Kuiper Belt objects ( Classical Kuiper Belt Objects, heavenly bodies designated CKBOs) move on nearly circular orbits, so low eccentricity , and orbital inclinations of up to 30 ° around the sun.
About two thirds of the known KBOs move on such a circle-like orbit around their central star. The others belong to the groups of resonant KBOs, such as the Plutinos , or to the Scattered Disk Objects (SDOs).
designation
The name Cubewano is derived from the English pronunciation of the provisional name (1992 QB 1 ) of the first KBO found (15760) Albion as "QB-one".
Well-known Cubewanos
- (15760) Albion : first object to be discovered beyond Pluto's orbit
- (136472) Makemake : after (134340) Pluto the second brightest KBO
- (486958) Arrokoth (unofficial, provisional name "Ultima Thule"), target of the New Horizons probe
- (50000) Quaoar
- (20000) Varuna
- (120347) Salacia
- (55565) 2002 TX 300
- (55565) 2002 AW 197
- (55637) 2002 UX 25
- (174567) Varda
- (523678) 2013 XB 26 : largest known Cubewano with perihelion over 45 AU
- 1999 CL 119 : not lost Cubewano with the highest known perihelion (46.42 AU)