Finding Earth 2.0
Kepler-121

Kepler-121 b

Rank #4154 of the ranked catalogue · Discovered by Transit in 2014

HZ 0%inferred

0.078

Earth-2.0 index

0.202

Earth Similarity Index

0%

Habitable-zone probability

2.34 R⊕

Radius

Planet

Mass6.080 M⊕inferred
Bulk density2.610 g/cm³
Orbital period3.1774 days
Semi-major axis0.03900 au
Eccentricity0.000
Incident flux220.489 S⊕
Equilibrium temperature979.5 K
Transit-time σ at 203010.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.08 masReflected-light contrast 6.25e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources8 · 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-121
Spectral typeG
Effective temperature5311 K
Radius0.701 R☉
Mass0.859 M☉
Distance510.5 pc / 1665.1 ly
DiscoveryTransit, 2014