Finding Earth 2.0
HD 108863 · K0

HD 108863 b

Rank #2159 of the ranked catalogue · Discovered by Radial Velocity in 2011

HZ 0%M sin i

0.095

Earth-2.0 index

0.309

Earth Similarity Index

0%

Habitable-zone probability

13.30 R⊕

Radius

Planet

Mass767.242 M⊕M sin i
Bulk density1.790 g/cm³
Orbital period437.7000 days
Semi-major axis1.32000 au
Eccentricity0.032
Incident flux9.642 S⊕
Equilibrium temperature447.9 K
Maximum angular separation8.01 masReflected-light contrast 1.76e-8 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 108863
Spectral typeK0
Effective temperature4878 K
Radius5.740 R☉
Mass1.590 M☉
Distance164.7 pc / 537.3 ly
DiscoveryRadial Velocity, 2011