Finding Earth 2.0
HD 218566 · K3V

HD 218566 b

Rank #1055 of the ranked catalogue · Discovered by Radial Velocity in 2010

HZ 100%M sin i

0.105

Earth-2.0 index

0.404

Earth Similarity Index

100%

Habitable-zone probability

9.32 R⊕

Radius

Planet

Mass63.566 M⊕M sin i
Bulk density0.431 g/cm³
Orbital period225.7000 days
Semi-major axis0.69000 au
Eccentricity0.300
Incident flux0.741 S⊕
Equilibrium temperature235.9 K
Maximum angular separation23.94 masReflected-light contrast 3.17e-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 218566
Spectral typeK3V
Effective temperature4730 K
Radius0.850 R☉
Mass0.760 M☉
Distance28.8 pc / 94.0 ly
DiscoveryRadial Velocity, 2010