HD 99109 · G8/K0 IV
HD 99109 b
Rank #1981 of the ranked catalogue · Discovered by Radial Velocity in 2005
HZ 100%M sin i
0.096
Earth-2.0 index
0.312
Earth Similarity Index
100%
Habitable-zone probability
14.30 R⊕
Radius
Planet
Mass139.845 M⊕M sin i
Bulk density0.263 g/cm³
Orbital period439.3000 days
Semi-major axis1.11000 au
Eccentricity0.090
Incident flux0.546 S⊕
Equilibrium temperature218.6 K
Maximum angular separation20.26 masReflected-light contrast 2.88e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · 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 99109
Spectral typeG8/K0 IV
Effective temperature5282 K
Radius0.980 R☉
Mass0.760 M☉
Distance54.8 pc / 178.7 ly
DiscoveryRadial Velocity, 2005