HD 170469 b
Description: HD 170469 b is a gas giant exoplanet located approximately 212 light-years away in the constellation Ophiuchus, orbiting the star HD 170469. This planet was discovered in April 2007. The star is 1.1 solar mass and the planet is at least 67% the mass of Jupiter, orbiting about half the distance of Jupiter from the Sun. The mass value is only minimum since the inclination is unknown.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 1.25 RJ
Density: 0.411 g/cm³
Equilibrium Temperature: Unknown
Orbital Parameters
Orbital Period: 1145.0 days
Semi-major Axis: 2.24 AU
Eccentricity: 0.11
Inclination: Unknown
Host Star Properties
Host Star: HD 170469
Spectral Type: G5 IV
Temperature: 5842.0 K
Stellar Mass: 1.1 M☉
Stellar Radius: 1.24 R☉
Discovery Information
Planet Letter: b
Object ID: 3.11158
Host ID: 2.5843
Discovery Date: 2007-11
Discovery Year: 2007
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: W. M. Keck Observatory
Discovery Instrument: HIRES Spectrometer