HD 81817 · K3 III
HD 81817 b
Rank #4871 of the ranked catalogue · Discovered by Radial Velocity in 2020
HZ 0%measured
0.070
Earth-2.0 index
0.116
Earth Similarity Index
0%
Habitable-zone probability
12.00 R⊕
Radius
Planet
Mass7668.564 M⊕measured
Bulk density24.400 g/cm³
Orbital period1021.2016 days
Semi-major axis3.23300 au
Eccentricity0.097
Incident flux174.402 S⊕
Equilibrium temperature923.7 K
Maximum angular separation12.01 masReflected-light contrast 2.39e-9 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 coverage50%0% median composite-to-default difference over shared parameters.
Host star & system
HostHD 81817
Spectral typeK3 III
Effective temperature4140 K
Radius83.800 R☉
Mass4.300 M☉
Distance269.1 pc / 877.8 ly
DiscoveryRadial Velocity, 2020