Tags: Planet.

9309 Platanus (1987 SS9) is a main-belt asteroid discovered on September 20 1987 by E. W. Elst at Smolyan.

apoapsis (km)
5.64469e+11
orbital period (μ)
1.78619e+08
periapsis (km)
3.85769e+11
absolute magnitude
13.3
discovery date
1987-09-20
discoverer
Eric Walter Elst
epoch
May 14 2008
former name
1987 SS9

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