PSR B1257+12 is a pulsar that can be located in the constellation of Virgo. The description is based on the spectral class.
PSR B1257+12 is a pulsar, a remains of a star that has died in a supernova. Although it is a pulsar, it has since been discovered there to be Extrasolar planets (Exoplanets) in orbit around the star. The actual star itself is tiny, it measures only 13.9 kilometers across but it we see it because of the amount of radiation that it gives off. It is a very fast spinning pulsar.
The pulsar was discovered in 1990 by polish astronomer Aleksander Wolszczan at the Arecibo Observatory, the same large telescope that was used in the climax of the James Bond, 007 film Goldeneye. Two years later, the same astronomer and a colleague discovered the exoplanets in orbit round the planet.
The location of the star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the star is compared to the celestial equator and is expressed in degrees. For PSR B1257+12, the location is 13h 00m 01s and +12 ° 40` 57 .
PSR B1257+12 has a spectral type of P.
|Primary / Proper / Traditional Name||PSR B1257+12|
|Multiple Star System||No / Unknown|
|Right Ascension (R.A.)||13h 00m 01s|
|Declination (Dec.)||+12 ° 40` 57|