K2-398 · G2
K2-398 c
Discovered by Transit in 2022
unknowninferred
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Earth-2.0 index
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Earth Similarity Index
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Habitable-zone probability
5.10 R⊕
Radius
Planet
Mass22.800 M⊕inferred
Bulk density0.946 g/cm³
Orbital period18.7878 days
Semi-major axis— au
Eccentricity—
Incident flux— S⊕
Equilibrium temperature— K
Transit-time σ at 2030348.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.22 masReflected-light contrast 2.45e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · 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
HostK2-398
Spectral typeG2
Effective temperature5946 K
Radius1.239 R☉
Mass0.945 M☉
Distance607.0 pc / 1979.7 ly
DiscoveryTransit, 2022