Wednesday, September 13, 2006

2003 UB313 named!

Meet Eris and its moon Dysnomia.

From the Minor Planet Mailing list (via the IAU Circulars):

(134340) PLUTO, (136199) ERIS, AND (136199) ERIS I (DYSNOMIA)
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].

special PDF circular

Eris is the goddess of strike, discord, and rivalry, and Dysnomia is the goddess of lawlessness.

My last post about the MPC designations for Pluto & the other large KBOs

2003 UB 313, Pluto, and other related Kuiper Belt posts:

An animation of Pluto

Direct measurements of 2003 UB 313

More science on 2003 UB 313

The The definition of a planet: IAU conference and the issue of 2003 UB313

Pluto's new moons named: Nix and Hydra

New Horizons--aka the Pluto and Kuiper Belt mission

Ortiz response

2003 EL61: bulgy or salt and pepper?

Huge new Kuiper Belt Object / Transneptunian Object?

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