Tags: Planet.

21479 Marymartha (1998 HN124) is a main-belt asteroid discovered on April 23 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
3.90442e+11
orbital period (μ)
1.01235e+08
periapsis (km)
2.6034e+11
absolute magnitude
13.9
discovery date
1998-04-23
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1998 HN124

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