129 Antigone is a large main-belt asteroid. Radar observations indicate that it is composed of almost pure nickel-iron. It and other similar asteroids probably originate from the core of a shattered Vesta-like planetesimal which had a differentiated interior. It was discovered by German-American astronomer C. H. F. Peters on February 5 1873 and named after Antigone the Theban princess in Greek mythology.In 1979 a possible satellite of Antigone was suggested based on lightcurve data.
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