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HD 219134 c is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.5 times the radius of Earth. It has an equilibrium temperature of 782 K (509°C). The planet completes one orbit around its star every 6.8 Earth days. 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
4.4
Earth Masses
1.51
Earth Radii
782
Temperature (K)
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,015
Discovery FacilityRoque de los Muchachos Observatory
Orbital Properties
Orbital Period6.7646 days
Semi-Major Axis0.0653 AU
Eccentricity0.062
Inclination87.28 deg
Physical Properties
Mass (Jupiter)0.0137 MJ
Mass (Earth)4.36 M⊕
Radius (Jupiter)0.1348 RJ
Radius (Earth)1.511 R⊕
Density6.95 g/cm3
Eq. Temperature782 K
Insolation Flux62.1 S⊕
Planetary Extremes
Where HD 219134 c sits on the spectrum of all known exoplanets.
Mass4.4 M⊕
FeatherweightColossus
Radius1.51 R⊕
TinyEnormous
Temperature782 K
FrozenInferno
Year Length6.8 days
LightningGlacial
Density6.95 g/cm³
FluffyIron-dense
Star Distance0.065 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.51x Earth's radius (0.13x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)HD 219134 c: 6.8 Earth days (0.065 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
What If You Lived Here?
133.7 kg
Your weight (from 70 kg)
1.91g
Heavy
Every step takes effort. Climbing stairs is exhausting.
6.8 Earth days
Year length
Orange sunrise
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