PSR 1257+12 is a
pulsar star and is located in the
constellation Virgo. A pulsar is a start that has gone
supernova. This was the first star that was discovered of its type to have
extrasolar planets revolving around it.
This star has three
planets in orbit. There is
speculation planets may have existed prior to the supernova and stripped barren due to the explosion however it is said to be more likely that that these planets were created from the remnants of the star after its explosion. The
discovery of the planetary system has been accredited to Doctor
Alexander Wolszczan in 1992.