HAT-P-8 · F6
HAT-P-8 b
Rank #5380 of the ranked catalogue · Discovered by Transit in 2008
HZ 0%measured
0.060
Earth-2.0 index
0.065
Earth Similarity Index
0%
Habitable-zone probability
15.69 R⊕
Radius
Planet
Mass406.822 M⊕measured
Bulk density0.686 g/cm³
Orbital period3.0763 days
Semi-major axis0.04496 au
Eccentricity0.000
Incident flux1519.965 S⊕
Equilibrium temperature1587.2 K
Transit-time σ at 203012.1 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.21 masReflected-light contrast 2.11e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · 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
HostHAT-P-8
Spectral typeF6
Effective temperature6200 K
Radius1.570 R☉
Mass1.270 M☉
Distance211.6 pc / 690.0 ly
DiscoveryTransit, 2008