HIP 111909 · K1 III
HIP 111909 c
Rank #1977 of the ranked catalogue · Discovered by Radial Velocity in 2025
HZ 0%M sin i
0.096
Earth-2.0 index
0.331
Earth Similarity Index
0%
Habitable-zone probability
13.90 R⊕
Radius
Planet
Mass257.441 M⊕M sin i
Bulk density0.527 g/cm³
Orbital period893.6300 days
Semi-major axis1.97000 au
Eccentricity—
Incident flux2.698 S⊕
Equilibrium temperature325.8 K
Maximum angular separation22.37 masReflected-light contrast 8.64e-9 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 coverage64%0% median composite-to-default difference over shared parameters.
Host star & system
HostHIP 111909
Spectral typeK1 III
Effective temperature4891 K
Radius4.530 R☉
Mass1.280 M☉
Distance88.1 pc / 287.3 ly
DiscoveryRadial Velocity, 2025