HD 181720 · G1 V
HD 181720 b
Rank #2393 of the ranked catalogue · Discovered by Radial Velocity in 2009
HZ 100%M sin i
0.093
Earth-2.0 index
0.314
Earth Similarity Index
100%
Habitable-zone probability
14.00 R⊕
Radius
Planet
Mass127.132 M⊕M sin i
Bulk density0.255 g/cm³
Orbital period956.0000 days
Semi-major axis1.85000 au
Eccentricity0.260
Incident flux0.567 S⊕
Equilibrium temperature220.6 K
Maximum angular separation30.73 masReflected-light contrast 9.94e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · 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 181720
Spectral typeG1 V
Effective temperature5736 K
Radius1.500 R☉
Mass1.030 M☉
Distance60.2 pc / 196.4 ly
DiscoveryRadial Velocity, 2009