HAT-P-20 · K3
HAT-P-20 b
Rank #3387 of the ranked catalogue · Discovered by Transit in 2010
HZ 0%measured
0.085
Earth-2.0 index
0.176
Earth Similarity Index
0%
Habitable-zone probability
9.72 R⊕
Radius
Planet
Mass2302.899 M⊕measured
Bulk density13.780 g/cm³
Orbital period2.8753 days
Semi-major axis0.03610 au
Eccentricity0.015
Incident flux85.117 S⊕
Equilibrium temperature772.1 K
Transit-time σ at 203014.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.51 masReflected-light contrast 1.26e-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
HostHAT-P-20
Spectral typeK3
Effective temperature4595 K
Radius0.694 R☉
Mass0.756 M☉
Distance71.0 pc / 231.7 ly
DiscoveryTransit, 2010