K2-28 · M4
K2-28 b
Rank #1568 of the ranked catalogue · Discovered by Transit in 2016
HZ 0%inferred
0.100
Earth-2.0 index
0.387
Earth Similarity Index
0%
Habitable-zone probability
2.32 R⊕
Radius
Planet
Mass5.990 M⊕inferred
Bulk density2.640 g/cm³
Orbital period2.2605 days
Semi-major axis0.02140 au
Eccentricity0.000
Incident flux30.100 S⊕
Equilibrium temperature595.4 K
Transit-time σ at 2030144.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.34 masReflected-light contrast 2.04e-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 coverage75%0% median composite-to-default difference over shared parameters.
Host star & system
HostK2-28
Spectral typeM4
Effective temperature3214 K
Radius0.288 R☉
Mass0.257 M☉
Distance63.0 pc / 205.5 ly
DiscoveryTransit, 2016