Tags: Planet.

6978 Hironaka (1993 RD) is a main-belt asteroid discovered on September 12 1993 by K. Endate and K. Watanabe at Kitami.

apoapsis (km)
4.4955e+11
orbital period (μ)
1.2952e+08
periapsis (km)
3.1741e+11
absolute magnitude
13.1
discovery date
1993-09-12
discoverer
Kin Endate, Kazuro Watanabe
epoch
May 14 2008
former name
1993 RD

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