Tags: Planet.

21625 Seira (1999 NN2) is a main-belt asteroid discovered on July 12 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
5.71979e+11
orbital period (μ)
1.72757e+08
periapsis (km)
3.57352e+11
absolute magnitude
14.1
discovery date
1999-07-12
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1999 NN2

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