Kepler-139
Kepler-139 f
Discovered by Transit Timing Variations in 2025
unknownmeasured
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Earth-2.0 index
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Earth Similarity Index
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Habitable-zone probability
6.67 R⊕
Radius
Planet
Mass36.000 M⊕measured
Bulk density0.667 g/cm³
Orbital period355.0000 days
Semi-major axis— au
Eccentricity—
Incident flux— S⊕
Equilibrium temperature— K
Maximum angular separation2.57 masReflected-light contrast 7.63e-9 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 coverage75%0% median composite-to-default difference over shared parameters.
Host star & system
HostKepler-139
Spectral typeG
Effective temperature5630 K
Radius1.045 R☉
Mass1.078 M☉
Distance391.0 pc / 1275.4 ly
DiscoveryTransit Timing Variations, 2025