Finding Earth 2.0
Kepler-331

Kepler-331 b

Rank #1779 of the ranked catalogue · Discovered by Transit in 2014

HZ 0%inferred

0.098

Earth-2.0 index

0.402

Earth Similarity Index

0%

Habitable-zone probability

1.82 R⊕

Radius

Planet

Mass3.970 M⊕inferred
Bulk density3.620 g/cm³
Orbital period8.4575 days
Semi-major axis0.06500 au
Eccentricity0.000
Incident flux35.984 S⊕
Equilibrium temperature622.6 K
Transit-time σ at 203030.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.11 masReflected-light contrast 1.36e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources7 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostKepler-331
Spectral typeK
Effective temperature4347 K
Radius0.492 R☉
Mass0.653 M☉
Distance580.1 pc / 1892.1 ly
DiscoveryTransit, 2014