Finding Earth 2.0
HD 156668 · K2

HD 156668 b

Rank #4005 of the ranked catalogue · Discovered by Radial Velocity in 2010

HZ 0%M sin i

0.080

Earth-2.0 index

0.180

Earth Similarity Index

0%

Habitable-zone probability

1.87 R⊕

Radius

Planet

Mass4.150 M⊕M sin i
Bulk density3.490 g/cm³
Orbital period4.6455 days
Semi-major axis0.05000 au
Eccentricity0.000
Incident flux679.298 S⊕
Equilibrium temperature1297.7 K
Maximum angular separation2.06 masReflected-light contrast 2.43e-7 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 156668
Spectral typeK2
Effective temperature4850 K
Radius0.720 R☉
Mass0.772 M☉
Distance24.3 pc / 79.4 ly
DiscoveryRadial Velocity, 2010