K2-255
K2-255 b
Rank #3965 of the ranked catalogue · Discovered by Transit in 2018
HZ 0%inferred
0.080
Earth-2.0 index
0.211
Earth Similarity Index
0%
Habitable-zone probability
2.90 R⊕
Radius
Planet
Mass8.750 M⊕inferred
Bulk density1.970 g/cm³
Orbital period1.9642 days
Semi-major axis0.02740 au
Eccentricity—
Incident flux215.911 S⊕
Equilibrium temperature974.4 K
Transit-time σ at 2030144.2 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.14 masReflected-light contrast 1.94e-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 coverage73%0% median composite-to-default difference over shared parameters.
Host star & system
HostK2-255
Spectral typeK
Effective temperature4676 K
Radius0.690 R☉
Mass0.710 M☉
Distance191.6 pc / 624.9 ly
DiscoveryTransit, 2018