Tags: Planet.

9054 Hippocastanum (1991 YO) is a main-belt asteroid discovered on December 30 1991 by E. W. Elst at Haute-Provence Observatory.

apoapsis (km)
4.66005e+11
orbital period (μ)
1.34151e+08
periapsis (km)
3.19127e+11
absolute magnitude
13.3
discovery date
1991-12-30
discoverer
Eric Walter Elst
epoch
May 14 2008
former name
1991 YO

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