Finding Earth 2.0
Kepler-309 · M0 V

Kepler-309 b

Rank #2683 of the ranked catalogue · Discovered by Transit in 2014

HZ 0%inferred

0.090

Earth-2.0 index

0.325

Earth Similarity Index

0%

Habitable-zone probability

1.56 R⊕

Radius

Planet

Mass3.050 M⊕inferred
Bulk density4.410 g/cm³
Orbital period5.9237 days
Semi-major axis0.05900 au
Eccentricity0.000
Incident flux99.493 S⊕
Equilibrium temperature802.8 K
Transit-time σ at 203051.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.11 masReflected-light contrast 1.21e-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-309
Spectral typeM0 V
Effective temperature4713 K
Radius0.721 R☉
Mass0.816 M☉
Distance544.6 pc / 1776.1 ly
DiscoveryTransit, 2014