HD 22781 · K1
HD 22781 b
Rank #1835 of the ranked catalogue · Discovered by Radial Velocity in 2011
HZ 0%M sin i
0.098
Earth-2.0 index
0.342
Earth Similarity Index
0%
Habitable-zone probability
12.30 R⊕
Radius
Planet
Mass4338.200 M⊕M sin i
Bulk density12.800 g/cm³
Orbital period528.0700 days
Semi-major axis1.16700 au
Eccentricity0.819
Incident flux0.246 S⊕
Equilibrium temperature178.9 K
Maximum angular separation35.79 masReflected-light contrast 1.93e-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 coverage58%0% median composite-to-default difference over shared parameters.
Host star & system
HostHD 22781
Spectral typeK1
Effective temperature5027 K
Radius0.744 R☉
Mass0.750 M☉
Distance32.6 pc / 106.3 ly
DiscoveryRadial Velocity, 2011