Chariklo

10199 Chariklo /ˈkærɪkloʊ/ is the largest confirmed centaur (small body of the outer Solar System). It orbits the Sun between Saturn and Uranus, grazing the orbit of Uranus. On 26 March 2014, astronomers announced the discovery of two rings (nicknamed as the rivers Oiapoque and Chuí)around Chariklo by observing a stellar occultation, making it the first minor planet known to have rings.

Chariklo was discovered by James V. Scotti of the Spacewatch program on February 15, 1997. Chariklo is named after the nymph Chariclo(Χαρικλώ), the wife of Chiron and the daughter of Apollo.

A photometric study in 2001 was unable to find a definite period of rotation. Infrared observations of Chariklo indicate the presence of water ice, which may in fact be located in its rings. Michael Brown's website lists it as possibly a dwarf planet with a measured diameter of 232 km.