Tags: Planet.

21356 Karlplank (1997 FG4) is a main-belt asteroid discovered on March 31 1997 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
4.13708e+11
orbital period (μ)
1.38701e+08
periapsis (km)
3.89079e+11
absolute magnitude
14.6
discovery date
1997-03-31
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1997 FG4

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