HD 189733 · K2 V
HD 189733 b
Rank #4529 of the ranked catalogue · Discovered by Radial Velocity in 2005
HZ 0%measured
0.074
Earth-2.0 index
0.114
Earth Similarity Index
0%
Habitable-zone probability
12.67 R⊕
Radius
Planet
Mass359.148 M⊕measured
Bulk density0.943 g/cm³
Orbital period2.2186 days
Semi-major axis0.03126 au
Eccentricity0.000
Incident flux356.000 S⊕
Equilibrium temperature1104.1 K
Transit-time σ at 20300.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.58 masReflected-light contrast 2.85e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources7 · 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
HostHD 189733
Spectral typeK2 V
Effective temperature5052 K
Radius0.750 R☉
Mass0.790 M☉
Distance19.8 pc / 64.5 ly
DiscoveryRadial Velocity, 2005