Kepler-1257
Kepler-1257 b
Rank #4097 of the ranked catalogue · Discovered by Transit in 2016
HZ 0%inferred
0.079
Earth-2.0 index
0.203
Earth Similarity Index
0%
Habitable-zone probability
1.52 R⊕
Radius
Planet
Mass2.920 M⊕inferred
Bulk density4.570 g/cm³
Orbital period2.6683 days
Semi-major axis0.03760 au
Eccentricity0.000
Incident flux546.908 S⊕
Equilibrium temperature1229.3 K
Transit-time σ at 203040.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.03 masReflected-light contrast 2.84e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · 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-1257
Spectral typeG
Effective temperature5502 K
Radius0.870 R☉
Mass0.900 M☉
Distance1106.0 pc / 3607.1 ly
DiscoveryTransit, 2016