K2-331
K2-331 c
Discovered by Transit in 2021
unknowninferred
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Earth-2.0 index
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Earth Similarity Index
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Habitable-zone probability
2.72 R⊕
Radius
Planet
Mass7.850 M⊕inferred
Bulk density2.140 g/cm³
Orbital period22.9966 days
Semi-major axis— au
Eccentricity—
Incident flux— S⊕
Equilibrium temperature673.0 K
Transit-time σ at 2030511.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.77 masReflected-light contrast 4.81e-8 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 coverage78%0% median composite-to-default difference over shared parameters.
Host star & system
HostK2-331
Spectral typeG
Effective temperature5994 K
Radius1.060 R☉
Mass1.100 M☉
Distance211.4 pc / 689.6 ly
DiscoveryTransit, 2021