14 Her b
Description: 14 Herculis b or 14 Her b is an exoplanet approximately 58.4 light-years away in the constellation of Hercules. The planet was found orbiting the star 14 Herculis, with a mass that would make the planet a Jovian planet roughly the same size as Jupiter but much more massive. It was discovered in July 1998 by the Geneva Extrasolar Planet Search team. The discovery was formally published in 2003. At the time of discovery it was the extrasolar planet with the longest orbital period, though longer-period planets have subsequently been discovered.
Physical Properties
Mass (Jupiter mass): 8.053 MJ
Radius (Jupiter radius): 1.12 RJ
Density: 7.03 g/cm³
Equilibrium Temperature: Unknown
Orbital Parameters
Orbital Period: 1765.0389 days
Semi-major Axis: 2.774 AU
Eccentricity: 0.373
Inclination: 144.652°
Host Star Properties
Host Star: 14 Her
Spectral Type: K0 V
Temperature: 5338.0 K
Stellar Mass: 0.91 M☉
Stellar Radius: 0.93 R☉
Discovery Information
Planet Letter: b
Object ID: 3.10906
Host ID: 2.57735
Discovery Date: 2003-01
Discovery Year: 2002
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: W. M. Keck Observatory
Discovery Instrument: HIRES Spectrometer