HD 191939 · G9 V
HD 191939 d
Rank #865 of the ranked catalogue · Discovered by Transit in 2020
HZ 0%measured
0.108
Earth-2.0 index
0.337
Earth Similarity Index
0%
Habitable-zone probability
3.00 R⊕
Radius
Planet
Mass2.800 M⊕measured
Bulk density0.570 g/cm³
Orbital period38.3530 days
Semi-major axis0.21320 au
Eccentricity0.031
Incident flux14.300 S⊕
Equilibrium temperature494.3 K
Transit-time σ at 20307.0 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation3.98 masReflected-light contrast 3.43e-8 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 coverage100%0% median composite-to-default difference over shared parameters.
Host star & system
HostHD 191939
Spectral typeG9 V
Effective temperature5348 K
Radius0.940 R☉
Mass0.810 M☉
Distance53.6 pc / 174.8 ly
DiscoveryTransit, 2020