Tags: Planet.

11898 Dedeyn (1991 GM9) is an outer main-belt asteroid discovered on April 10 1991 by E. W. Elst at the European Southern Observatory.

apoapsis (km)
5.37526e+11
orbital period (μ)
1.82009e+08
periapsis (km)
4.24697e+11
absolute magnitude
13.1
discovery date
1991-04-10
discoverer
Eric Walter Elst
epoch
May 14 2008
former name
1991 GM9

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