Finding Earth 2.0
Kepler-311

Kepler-311 d

Rank #287 of the ranked catalogue · Discovered by Transit in 2023

HZ 2%inferred

0.120

Earth-2.0 index

0.679

Earth Similarity Index

2%

Habitable-zone probability

2.05 R⊕

Radius

Planet

Mass4.860 M⊕inferred
Bulk density3.100 g/cm³
Orbital period232.0403 days
Semi-major axis0.73260 au
Eccentricity0.000
Incident flux2.710 S⊕
Equilibrium temperature326.1 K
Transit-time σ at 2030320.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.94 masReflected-light contrast 1.36e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage83%0% median composite-to-default difference over shared parameters.

Host star & system

HostKepler-311
Spectral typeG
Effective temperature5903 K
Radius1.156 R☉
Mass0.974 M☉
Distance778.7 pc / 2539.6 ly
DiscoveryTransit, 2023