HD 28109 · F8
HD 28109 c
Rank #1657 of the ranked catalogue · Discovered by Transit in 2022
HZ 0%measured
0.099
Earth-2.0 index
0.278
Earth Similarity Index
0%
Habitable-zone probability
4.13 R⊕
Radius
Planet
Mass9.200 M⊕measured
Bulk density0.700 g/cm³
Orbital period55.9971 days
Semi-major axis0.30800 au
Eccentricity0.004
Incident flux29.953 S⊕
Equilibrium temperature594.7 K
Transit-time σ at 203040.2 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation2.21 masReflected-light contrast 3.12e-8 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 coverage83%0% median composite-to-default difference over shared parameters.
Host star & system
HostHD 28109
Spectral typeF8
Effective temperature6189 K
Radius1.425 R☉
Mass1.227 M☉
Distance139.6 pc / 455.3 ly
DiscoveryTransit, 2022