KELT-21 · A8 V
KELT-21 b
Discovered by Transit in 2018
unknownupper limit
—
Earth-2.0 index
0.057
Earth Similarity Index
—
Habitable-zone probability
17.78 R⊕
Radius
Planet
Mass1242.715 M⊕upper limit
Bulk density1.240 g/cm³
Orbital period3.6128 days
Semi-major axis0.05224 au
Eccentricity0.000
Incident flux2950.000 S⊕
Equilibrium temperature1873.4 K
Transit-time σ at 20306.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.11 masReflected-light contrast 2.01e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources2 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage100%0% median composite-to-default difference over shared parameters.
Host star & system
HostKELT-21
Spectral typeA8 V
Effective temperature7598 K
Radius1.638 R☉
Mass1.458 M☉
Distance470.9 pc / 1535.8 ly
DiscoveryTransit, 2018