HD 81817 · K3 III
HD 81817 c
Rank #5335 of the ranked catalogue · Discovered by Radial Velocity in 2022
HZ 0%M sin i
0.061
Earth-2.0 index
0.098
Earth Similarity Index
0%
Habitable-zone probability
12.00 R⊕
Radius
Planet
Mass7185.783 M⊕M sin i
Bulk density22.900 g/cm³
Orbital period622.9780 days
Semi-major axis2.32500 au
Eccentricity0.095
Incident flux337.223 S⊕
Equilibrium temperature1089.3 K
Maximum angular separation8.64 masReflected-light contrast 4.62e-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, 2022