HD 81688 · K0 III-IV
HD 81688 b
Rank #4688 of the ranked catalogue · Discovered by Radial Velocity in 2007
HZ 0%M sin i
0.072
Earth-2.0 index
0.149
Earth Similarity Index
0%
Habitable-zone probability
13.50 R⊕
Radius
Planet
Mass525.688 M⊕M sin i
Bulk density1.170 g/cm³
Orbital period183.9300 days
Semi-major axis0.64800 au
Eccentricity0.040
Incident flux143.604 S⊕
Equilibrium temperature879.9 K
Maximum angular separation7.56 masReflected-light contrast 7.53e-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 81688
Spectral typeK0 III-IV
Effective temperature4797 K
Radius11.130 R☉
Mass1.070 M☉
Distance85.7 pc / 279.6 ly
DiscoveryRadial Velocity, 2007