61 Vir b
Description: 61 Virginis b is an extrasolar planet, orbiting the 5th magnitude G-type star 61 Virginis, in Virgo. This planet has a minimum mass of 5.1 times that of Earth and is an example of a super-Earth planet. It orbits very close to the star, at a distance of 0.050201 AU with an eccentricity of 0.12. This planet was discovered on 14 December 2009 using the radial velocity method taken at Keck and Anglo-Australian Observatories.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 0.188 RJ
Density: 2.98 g/cm³
Equilibrium Temperature: Unknown
Orbital Parameters
Orbital Period: 4.215 days
Semi-major Axis: 0.050201 AU
Eccentricity: 0.12
Inclination: Unknown
Host Star Properties
Host Star: 61 Vir
Spectral Type: G5 V
Temperature: 5577.0 K
Stellar Mass: 0.94 M☉
Stellar Radius: 0.96 R☉
Discovery Information
Planet Letter: b
Object ID: 3.10926
Host ID: 2.56929
Discovery Date: 2010-01
Discovery Year: 2009
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: Multiple Observatories
Discovery Instrument: Multiple Instruments