K2-178
K2-178 b
Rank #3757 of the ranked catalogue · Discovered by Transit in 2018
HZ 0%inferred
0.082
Earth-2.0 index
0.229
Earth Similarity Index
0%
Habitable-zone probability
3.56 R⊕
Radius
Planet
Mass12.400 M⊕inferred
Bulk density1.510 g/cm³
Orbital period8.7478 days
Semi-major axis— au
Eccentricity—
Incident flux117.826 S⊕
Equilibrium temperature837.5 K
Transit-time σ at 2030324.6 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.38 masReflected-light contrast 3.29e-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 coverage60%0% median composite-to-default difference over shared parameters.
Host star & system
HostK2-178
Spectral typeG
Effective temperature5525 K
Radius0.887 R☉
Mass0.951 M☉
Distance214.8 pc / 700.4 ly
DiscoveryTransit, 2018