Kepler-31
Kepler-31 c
Rank #4417 of the ranked catalogue · Discovered by Transit in 2011
HZ 0%upper limit
0.075
Earth-2.0 index
0.172
Earth Similarity Index
0%
Habitable-zone probability
5.30 R⊕
Radius
Planet
Mass1493.700 M⊕upper limit
Bulk density0.730 g/cm³
Orbital period42.6318 days
Semi-major axis0.26000 au
Eccentricity0.000
Incident flux35.254 S⊕
Equilibrium temperature619.4 K
Transit-time σ at 2030127.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.16 masReflected-light contrast 7.21e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources7 · 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
HostKepler-31
Spectral typeF
Effective temperature6340 K
Radius1.220 R☉
Mass1.210 M☉
Distance1664.6 pc / 5429.3 ly
DiscoveryTransit, 2011