Finding Earth 2.0
HD 13931 · G0

HD 13931 b

Rank #1709 of the ranked catalogue · Discovered by Radial Velocity in 2009

HZ 0%measured

0.099

Earth-2.0 index

0.277

Earth Similarity Index

0%

Habitable-zone probability

13.20 R⊕

Radius

Planet

Mass889.919 M⊕measured
Bulk density2.130 g/cm³
Orbital period4218.0000 days
Semi-major axis5.15000 au
Eccentricity0.020
Incident flux0.059 S⊕
Equilibrium temperature125.4 K
Maximum angular separation108.66 masReflected-light contrast 1.14e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage67%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 13931
Spectral typeG0
Effective temperature5867 K
Radius1.250 R☉
Mass1.300 M☉
Distance47.4 pc / 154.6 ly
DiscoveryRadial Velocity, 2009