K2-228
K2-228 b
Rank #2352 of the ranked catalogue · Discovered by Transit in 2018
HZ 0%inferred
0.093
Earth-2.0 index
0.321
Earth Similarity Index
0%
Habitable-zone probability
1.21 R⊕
Radius
Planet
Mass1.920 M⊕inferred
Bulk density5.960 g/cm³
Orbital period2.6983 days
Semi-major axis0.03380 au
Eccentricity—
Incident flux123.980 S⊕
Equilibrium temperature848.2 K
Transit-time σ at 2030577.6 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.26 masReflected-light contrast 2.22e-7 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 coverage73%0% median composite-to-default difference over shared parameters.
Host star & system
HostK2-228
Spectral typeK
Effective temperature4715 K
Radius0.650 R☉
Mass0.710 M☉
Distance129.5 pc / 422.2 ly
DiscoveryTransit, 2018