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HD 219134 h is a Gas Giant exoplanet (a massive planet composed primarily of hydrogen and helium) with a mass of 108.1 Earth masses. The planet completes one orbit around its star every 6.2 Earth years. It was discovered in 2015 using the radial velocity method. It orbits the K-type star HD 219134, located approximately 7 parsecs (21 light-years) from Earth.
2015
Discovered
108.1
Earth Masses
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,015
Discovery FacilityRoque de los Muchachos Observatory
Orbital Properties
Orbital Period2,247 days
Semi-Major Axis3.11 AU
Eccentricity0.06
Physical Properties
Mass (Jupiter)0.34 MJ
Mass (Earth)108.0622 M⊕
Planetary Extremes
Where HD 219134 h sits on the spectrum of all known exoplanets.
Mass108.1 M⊕
FeatherweightColossus
Year Length6.2 yrs
LightningGlacial
Star Distance3.110 AU
ScorchedFrozen exile
Star System View
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Orbit Comparison
Earth: 365.25 days (1 AU)HD 219134 h: 6.2 Earth years (3.110 AU)
Host Star: HD 219134
Spectral TypeK3 V
Effective Temperature4,913 K
Mass0.794 M☉
Radius0.77 R☉
Size vs Sun1.30x smaller
Luminosity0.31 L☉
Luminosity vs Sun3.2x dimmer
Metallicity [Fe/H]0.08
Distance (pc)6.5313 pc
Distance (ly)21.3 light-years
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