Tags: Planet.

21454 Chernoby (1998 HE40) is a main-belt asteroid discovered on April 20 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
5.11952e+11
orbital period (μ)
1.78073e+08
periapsis (km)
4.36347e+11
absolute magnitude
13.2
discovery date
1998-04-20
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1998 HE40

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