1662 Hoffmann (A923 RB) is a main-belt asteroid discovered on September 11 1923 by Reinmuth K. at Heidelberg.This object is a member of the Merxia family of asteroids that share similar orbital elements and physical properties. This family was named after the asteroid 808 Merxia. They most likely formed from the breakup of a basalt object which in turn was spawned from a larger parent body that underwent igneous differentiation.
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