K2-139 · K0 V
K2-139 b
Rank #1448 of the ranked catalogue · Discovered by Transit in 2017
HZ 0%measured
0.101
Earth-2.0 index
0.279
Earth Similarity Index
0%
Habitable-zone probability
9.11 R⊕
Radius
Planet
Mass123.000 M⊕measured
Bulk density0.910 g/cm³
Orbital period28.3806 days
Semi-major axis0.17960 au
Eccentricity0.120
Incident flux15.556 S⊕
Equilibrium temperature504.8 K
Transit-time σ at 2030144.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.17 masReflected-light contrast 4.47e-7 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 coverage67%0% median composite-to-default difference over shared parameters.
Host star & system
HostK2-139
Spectral typeK0 V
Effective temperature5370 K
Radius0.880 R☉
Mass0.960 M☉
Distance153.9 pc / 501.8 ly
DiscoveryTransit, 2017