Tags: Planet.
PSR B1257+12 b (ex PSR B1257+12 A) is an exoplanet (or extrasolar planet) approximately 980 light-years away in the constellation of Virgo. The planet is the innermost object orbiting the pulsar PSR B1257+12 i.e. a pulsar planet in the dead stellar system. It is about twice as massive as the Moon and is listed as the least massive planet known including among the planets in the Solar System.
