PSR B1257+12 c
Description: PSR B1257+12 c, alternatively designated PSR B1257+12 B, also named Poltergeist, is an extrasolar planet approximately 2,300 light-years away in the constellation of Virgo. It was one of the first planets ever discovered outside the Solar System, and is one of three pulsar planets known to be orbiting the pulsar Lich.
Physical Properties
Mass (Jupiter mass): 0.0135292451939716 MJ
Radius (Jupiter radius): 0.17 RJ
Density: 3.39 g/cm³
Equilibrium Temperature: Unknown
Orbital Parameters
Orbital Period: 66.5419 days
Semi-major Axis: 0.36 AU
Eccentricity: 0.0186
Inclination: 53.0°
Host Star Properties
Host Star: PSR B1257+12
Spectral Type: Unknown
Temperature: Unknown
Stellar Mass: 1.4 M☉
Stellar Radius: Unknown
Discovery Information
Planet Letter: c
Object ID: 3.11421
Host ID: 2.103403
Discovery Date: 1992-01
Discovery Year: 1992
Discovery Method: Pulsar Timing
Discovery Locale: Ground
Discovery Facility: Arecibo Observatory
Discovery Instrument: Arecibo Radio Reciever