K2-218
K2-218 b
Discovered by Transit in 2018
unknowninferred
—
Earth-2.0 index
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Earth Similarity Index
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Habitable-zone probability
2.57 R⊕
Radius
Planet
Mass7.130 M⊕inferred
Bulk density2.310 g/cm³
Orbital period8.6799 days
Semi-major axis— au
Eccentricity—
Incident flux— S⊕
Equilibrium temperature— K
Transit-time σ at 2030364.1 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.21 masReflected-light contrast 1.63e-7 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
HostK2-218
Spectral typeG
Effective temperature5757 K
Radius1.008 R☉
Mass1.048 M☉
Distance394.1 pc / 1285.3 ly
DiscoveryTransit, 2018