Tags: Planet.

12580 Antonini (1999 RM33) is a main-belt asteroid discovered on September 8 1999 by L. Bernasconi at St. Michel sur Meurthe.

apoapsis (km)
5.71085e+11
orbital period (μ)
1.68747e+08
periapsis (km)
3.43812e+11
absolute magnitude
14.2
discovery date
1999-09-08
discoverer
L._Bernasconi
epoch
May 14 2008
former name
1999 RM33

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