Kepler-439
Kepler-439 b
Rank #154 of the ranked catalogue · Discovered by Transit in 2015
HZ 9%inferred
0.126
Earth-2.0 index
0.728
Earth Similarity Index
9%
Habitable-zone probability
2.24 R⊕
Radius
Planet
Mass5.650 M⊕inferred
Bulk density2.760 g/cm³
Orbital period178.1396 days
Semi-major axis0.56300 au
Eccentricity0.030
Incident flux1.830 S⊕
Equilibrium temperature295.6 K
Transit-time σ at 2030104.0 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.74 masReflected-light contrast 2.75e-9 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 coverage75%0% median composite-to-default difference over shared parameters.
Host star & system
HostKepler-439
Spectral typeG
Effective temperature5431 K
Radius0.866 R☉
Mass0.884 M☉
Distance757.0 pc / 2469.2 ly
DiscoveryTransit, 2015