Finding Earth 2.0
HD 40956 · K0

HD 40956 b

Rank #3345 of the ranked catalogue · Discovered by Radial Velocity in 2017

HZ 0%M sin i

0.085

Earth-2.0 index

0.256

Earth Similarity Index

0%

Habitable-zone probability

13.20 R⊕

Radius

Planet

Mass858.141 M⊕M sin i
Bulk density2.050 g/cm³
Orbital period578.6000 days
Semi-major axis1.40000 au
Eccentricity0.240
Incident flux23.556 S⊕
Equilibrium temperature560.0 K
Maximum angular separation12.01 masReflected-light contrast 1.54e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · 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 40956
Spectral typeK0
Effective temperature4869 K
Radius8.560 R☉
Mass2.000 M☉
Distance116.6 pc / 380.3 ly
DiscoveryRadial Velocity, 2017