Tags: Planet.

4557 Mika (1987 XD) is a main-belt asteroid discovered on December 14 1987 by Masayuki Yanai and Kazuro Watanabe at Kitami.

apoapsis (km)
4.74572e+11
orbital period (μ)
1.65843e+08
periapsis (km)
4.29797e+11
absolute magnitude
11.7
discovery date
1987-12-14
discoverer
Masayuki Yanai, Kazuro Watanabe
epoch
May 14 2008
former name
1987 XD

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