HAT-P-1 · G0 V
HAT-P-1 b
Rank #4909 of the ranked catalogue · Discovered by Transit in 2006
HZ 0%measured
0.069
Earth-2.0 index
0.097
Earth Similarity Index
0%
Habitable-zone probability
14.78 R⊕
Radius
Planet
Mass166.861 M⊕measured
Bulk density0.282 g/cm³
Orbital period4.4653 days
Semi-major axis0.05561 au
Eccentricity0.000
Incident flux259.687 S⊕
Equilibrium temperature1020.4 K
Transit-time σ at 20301.6 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.35 masReflected-light contrast 1.23e-5 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 coverage83%0% median composite-to-default difference over shared parameters.
Host star & system
HostHAT-P-1
Spectral typeG0 V
Effective temperature5980 K
Radius1.174 R☉
Mass1.151 M☉
Distance159.0 pc / 518.5 ly
DiscoveryTransit, 2006