142 Polana is a very dark main belt asteroid. It was discovered by Johann Palisa on January 28 1875 and named after the city of Pola (now Pula Croatia) home of the Austrian Naval Observatory where he made the discovery.It is a major member of the eponymously named Polana family which is a subgroup of the Nysa family. The asteroid has an estimated diameter of about 55.3 km and a low albedo of 0.045.
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