Classical Kuiper belt object
A Cubewano is a Kuiper belt object ( Kuiper Belt Object, KBO ), which orbits the Sun at a distance 41-50 astronomical units and has no orbital resonance with the outer planet. This also a classical Kuiper belt objects (Classical Kuiper Belt Objects, CKBOs ) designated celestial bodies move in nearly circular orbits, ie with low eccentricity, and orbital inclinations of up to 30 °.
About two-thirds of the known KBOs move on such a circle-like orbit around the sun. The other belonging to the groups of the resonant KBOs as the Plutinos, or the disc Scattered objects ( SDO ).
Designation
The term Cubewano is derived from the English pronunciation of the first found KBOs 1992 QB1 as " QB -one".