Tags: Planet.

3421 Yangchenning (1975 WK1) is a main-belt asteroid discovered on November 26 1975 by Purple Mountain Observatory at Nanking.

apoapsis (km)
3.65003e+11
orbital period (μ)
1.05341e+08
periapsis (km)
3.03256e+11
absolute magnitude
13.5
discovery date
1975-11-26
discoverer
Purple Mountain Observatory
epoch
May 14 2008
former name
1975 WK1

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