Finding Earth 2.0
HD 159868 · G5 V

HD 159868 b

Rank #837 of the ranked catalogue · Discovered by Radial Velocity in 2006

HZ 100%M sin i

0.108

Earth-2.0 index

0.446

Earth Similarity Index

100%

Habitable-zone probability

13.30 R⊕

Radius

Planet

Mass704.947 M⊕M sin i
Bulk density1.650 g/cm³
Orbital period1184.1000 days
Semi-major axis2.32000 au
Eccentricity0.024
Incident flux0.668 S⊕
Equilibrium temperature229.8 K
Maximum angular separation41.54 masReflected-light contrast 5.70e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · 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 159868
Spectral typeG5 V
Effective temperature5534 K
Radius2.130 R☉
Mass1.190 M☉
Distance55.9 pc / 182.2 ly
DiscoveryRadial Velocity, 2006