Tags: Planet.

12257 Lassine (1989 GL4) is a main-belt asteroid discovered on April 3 1989 by E. W. Elst at the European Southern Observatory.

apoapsis (km)
4.27362e+11
orbital period (μ)
1.27754e+08
periapsis (km)
3.32611e+11
absolute magnitude
14.1
discovery date
1989-04-03
discoverer
Eric Walter Elst
epoch
May 14 2008
former name
1989 GL4

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