Following the Aug. 24 resolution by the IAU to the effect that the solar system contains eight "planets" (Mercury-Neptune), with (1) Ceres, Pluto (cf. IAUC 255), and 2003 UB_313 (cf. IAUC 8577) to be considered representative "dwarf planets", the Minor Planet Center included Pluto and 2003 UB_313 (along with two other new potential dwarf-planet candidates) in the standard catalogue of numbered objects with well-determined orbits as (134340) and (136199), respectively (see MPC 57525). Following near-unanimous acceptance by both the Committee on Small-Body Nomenclature and the Working Group on Planetary-System Nomenclature (in consultation with the discovery team), the IAU Executive Committee has now approved the names Eris for (136199) and Dysnomia for its satellite (136199) Eris I [formerly S/2005 (2003 UB_313) 1; cf. IAUC 8610].
International Astronomical Union Circular
- Pub Date:
- September 2006