Finding Earth 2.0
HD 30856 · K0 III

HD 30856 b

Rank #1473 of the ranked catalogue · Discovered by Radial Velocity in 2011

HZ 0%M sin i

0.101

Earth-2.0 index

0.370

Earth Similarity Index

0%

Habitable-zone probability

13.50 R⊕

Radius

Planet

Mass491.683 M⊕M sin i
Bulk density1.100 g/cm³
Orbital period847.0000 days
Semi-major axis1.85000 au
Eccentricity0.061
Incident flux2.893 S⊕
Equilibrium temperature331.5 K
Maximum angular separation14.10 masReflected-light contrast 9.24e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · 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 30856
Spectral typeK0 III
Effective temperature4895 K
Radius4.400 R☉
Mass1.170 M☉
Distance131.2 pc / 427.9 ly
DiscoveryRadial Velocity, 2011