PSR J1719-1438 b
Description: PSR J1719−1438 b is an extrasolar planet that was discovered on August 25, 2011, in orbit around PSR J1719−1438, a millisecond pulsar. The pulsar planet is most likely composed largely of crystalline carbon but with a density far greater than diamond. PSR J1719-1438 b orbits so closely to its host star that its orbit would fit inside the Sun. The existence of such carbon planets had been theoretically postulated.
Physical Properties
Mass (Jupiter mass): 1.2 MJ
Radius (Jupiter radius): Unknown
Density: 23.0 g/cm³
Equilibrium Temperature: Unknown
Orbital Parameters
Orbital Period: 0.09070629 days
Semi-major Axis: 0.0044 AU
Eccentricity: 0.06
Inclination: Unknown
Host Star Properties
Host Star: PSR J1719-1438
Spectral Type: Unknown
Temperature: 4500.0 K
Stellar Mass: 1.4 M☉
Stellar Radius: Unknown
Discovery Information
Planet Letter: b
Object ID: 3.1162
Host ID: 2.103698
Discovery Date: 2011-09
Discovery Year: 2011
Discovery Method: Pulsar Timing
Discovery Locale: Ground
Discovery Facility: Parkes Observatory
Discovery Instrument: Parkes Radio Receiver