Finding Earth 2.0
Kepler-428 · K1 V

Kepler-428 b

Rank #3992 of the ranked catalogue · Discovered by Transit in 2014

HZ 0%measured

0.080

Earth-2.0 index

0.142

Earth Similarity Index

0%

Habitable-zone probability

12.11 R⊕

Radius

Planet

Mass403.630 M⊕measured
Bulk density1.020 g/cm³
Orbital period3.5256 days
Semi-major axis0.04330 au
Eccentricity0.220
Incident flux195.088 S⊕
Equilibrium temperature950.0 K
Transit-time σ at 20300.5 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.06 masReflected-light contrast 1.36e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · 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-428
Spectral typeK1 V
Effective temperature5150 K
Radius0.800 R☉
Mass0.870 M☉
Distance686.3 pc / 2238.4 ly
DiscoveryTransit, 2014