Finding Earth 2.0
HD 27631 · G3 IV/V

HD 27631 b

Rank #2135 of the ranked catalogue · Discovered by Radial Velocity in 2012

HZ 0%measured

0.095

Earth-2.0 index

0.274

Earth Similarity Index

0%

Habitable-zone probability

13.50 R⊕

Radius

Planet

Mass495.812 M⊕measured
Bulk density1.110 g/cm³
Orbital period2198.1400 days
Semi-major axis3.24200 au
Eccentricity0.141
Incident flux0.084 S⊕
Equilibrium temperature136.7 K
Maximum angular separation64.47 masReflected-light contrast 3.01e-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 27631
Spectral typeG3 IV/V
Effective temperature5737 K
Radius0.923 R☉
Mass0.944 M☉
Distance50.3 pc / 164.0 ly
DiscoveryRadial Velocity, 2012