Kepler-22 · G5 V
Kepler-22 b
Rank #39 of the ranked catalogue · Discovered by Transit in 2011
HZ 52%upper limit
0.236
Earth-2.0 index
0.849
Earth Similarity Index
52%
Habitable-zone probability
2.10 R⊕
Radius
Planet
Mass9.100 M⊕upper limit
Bulk density5.200 g/cm³
Orbital period289.8639 days
Semi-major axis0.81200 au
Eccentricity0.720
Incident flux1.013 S⊕
Equilibrium temperature255.0 K
Transit-time σ at 20309.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation4.17 masReflected-light contrast 1.16e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage100%0% median composite-to-default difference over shared parameters.
Host star & system
HostKepler-22
Spectral typeG5 V
Effective temperature5596 K
Radius0.869 R☉
Mass0.857 M☉
Distance194.6 pc / 634.8 ly
DiscoveryTransit, 2011