HD 62509 b
Description: Pollux b, formally named Thestias, is an exoplanet candidate orbiting the star Pollux approximately 34 light-years away in the constellation of Gemini. It is also designated β Geminorum b or HD 62509 b. If this planet exists, it has a minimum mass of about twice the mass of Jupiter, and it moves around Pollux in 1.61 years at a distance of 1.64 AU in a nearly circular orbit. However, its existence has been disputed.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 1.19 RJ
Density: 1.71 g/cm³
Equilibrium Temperature: Unknown
Orbital Parameters
Orbital Period: 589.64 days
Semi-major Axis: 1.64 AU
Eccentricity: 0.02
Inclination: Unknown
Host Star Properties
Host Star: HD 62509
Spectral Type: K0IIIvar
Temperature: 4892.63 K
Stellar Mass: 2.0 M☉
Stellar Radius: 8.9 R☉
Discovery Information
Planet Letter: b
Object ID: 3.11316
Host ID: 2.55526
Discovery Date: 2006-10
Discovery Year: 2006
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: Multiple Observatories
Discovery Instrument: Multiple Instruments