KELT-9 · A
KELT-9 b
Discovered by Transit in 2017
unknownmeasured
—
Earth-2.0 index
0.020
Earth Similarity Index
—
Habitable-zone probability
21.70 R⊕
Radius
Planet
Mass915.346 M⊕measured
Bulk density0.491 g/cm³
Orbital period1.4811 days
Semi-major axis0.03368 au
Eccentricity0.000
Incident flux44900.000 S⊕
Equilibrium temperature3700.2 K
Transit-time σ at 20305.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.17 masReflected-light contrast 7.21e-5 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 coverage92%0% median composite-to-default difference over shared parameters.
Host star & system
HostKELT-9
Spectral typeA
Effective temperature9270 K
Radius2.418 R☉
Mass2.320 M☉
Distance204.5 pc / 666.8 ly
DiscoveryTransit, 2017