Kepler-391 · K2 III-IV
Kepler-391 c
Rank #5168 of the ranked catalogue · Discovered by Transit in 2014
HZ 0%upper limit
0.065
Earth-2.0 index
0.109
Earth Similarity Index
0%
Habitable-zone probability
2.88 R⊕
Radius
Planet
Mass450.000 M⊕upper limit
Bulk density400.000 g/cm³
Orbital period20.5010 days
Semi-major axis0.16400 au
Eccentricity0.270
Incident flux179.000 S⊕
Equilibrium temperature929.8 K
Transit-time σ at 203015298.6 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.19 masReflected-light contrast 5.35e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources2 · 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-391
Spectral typeK2 III-IV
Effective temperature5038 K
Radius2.879 R☉
Mass1.270 M☉
Distance869.2 pc / 2835.1 ly
DiscoveryTransit, 2014