Finding Earth 2.0
HD 217107 · G

HD 217107 c

Rank #1965 of the ranked catalogue · Discovered by Radial Velocity in 2005

HZ 0%measured

0.097

Earth-2.0 index

0.261

Earth Similarity Index

0%

Habitable-zone probability

12.90 R⊕

Radius

Planet

Mass1388.910 M⊕measured
Bulk density3.560 g/cm³
Orbital period5138.7000 days
Semi-major axis5.92200 au
Eccentricity0.392
Incident flux0.036 S⊕
Equilibrium temperature110.5 K
Maximum angular separation295.19 masReflected-light contrast 8.24e-10 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage58%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 217107
Spectral typeG
Effective temperature5622 K
Radius1.224 R☉
Mass1.045 M☉
Distance20.1 pc / 65.4 ly
DiscoveryRadial Velocity, 2005