KOI-1257 · G5 V
KOI-1257 b
Rank #868 of the ranked catalogue · Discovered by Transit in 2014
HZ 0%measured
0.108
Earth-2.0 index
0.358
Earth Similarity Index
0%
Habitable-zone probability
10.54 R⊕
Radius
Planet
Mass460.830 M⊕measured
Bulk density2.100 g/cm³
Orbital period86.6477 days
Semi-major axis0.38200 au
Eccentricity0.772
Incident flux7.280 S⊕
Equilibrium temperature417.5 K
Transit-time σ at 20304.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.58 masReflected-light contrast 1.32e-7 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 coverage83%0% median composite-to-default difference over shared parameters.
Host star & system
HostKOI-1257
Spectral typeG5 V
Effective temperature5520 K
Radius1.130 R☉
Mass0.990 M☉
Distance656.0 pc / 2139.6 ly
DiscoveryTransit, 2014