Discover

'142 Polana' is a very dark Main belt asteroid. It is a primitive carbonaceous asteroid of type F (a subdivision of more common C-type).
It is a major member of the Polana family, which is a subgroup of the Nysa family.
It was discovered by Johann Palisa on January 28, 1875, and named after the city of Pola (now Pula, Croatia) where he made the discovery.