Kepler-9
Kepler-9 d
Rank #4438 of the ranked catalogue · Discovered by Transit in 2010
HZ 0%M sin i
0.075
Earth-2.0 index
0.136
Earth Similarity Index
0%
Habitable-zone probability
1.64 R⊕
Radius
Planet
Mass8.415 M⊕M sin i
Bulk density13.547 g/cm³
Orbital period1.5929 days
Semi-major axis0.02730 au
Eccentricity0.000
Incident flux1339.658 S⊕
Equilibrium temperature1537.8 K
Transit-time σ at 2030304.7 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.04 masReflected-light contrast 6.26e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage67%0% median composite-to-default difference over shared parameters.
Host star & system
HostKepler-9
Spectral typeG
Effective temperature5777 K
Radius1.020 R☉
Mass1.070 M☉
Distance628.3 pc / 2049.1 ly
DiscoveryTransit, 2010