Finding Earth 2.0
Kepler-39 · F7 V

Kepler-39 b

Rank #3811 of the ranked catalogue · Discovered by Transit in 2011

HZ 0%measured

0.081

Earth-2.0 index

0.158

Earth Similarity Index

0%

Habitable-zone probability

13.90 R⊕

Radius

Planet

Mass6388.100 M⊕measured
Bulk density13.000 g/cm³
Orbital period21.0872 days
Semi-major axis0.16400 au
Eccentricity0.112
Incident flux90.220 S⊕
Equilibrium temperature783.4 K
Transit-time σ at 203016.6 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.15 masReflected-light contrast 1.25e-6 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage92%0% median composite-to-default difference over shared parameters.

Host star & system

HostKepler-39
Spectral typeF7 V
Effective temperature6350 K
Radius1.400 R☉
Mass1.290 M☉
Distance1057.4 pc / 3448.8 ly
DiscoveryTransit, 2011