HD 18438 · M2.5 III
HD 18438 b
Rank #5046 of the ranked catalogue · Discovered by Radial Velocity in 2023
HZ 0%M sin i
0.067
Earth-2.0 index
0.115
Earth Similarity Index
0%
Habitable-zone probability
12.10 R⊕
Radius
Planet
Mass6674.396 M⊕M sin i
Bulk density20.700 g/cm³
Orbital period803.0000 days
Semi-major axis2.10000 au
Eccentricity0.100
Incident flux210.658 S⊕
Equilibrium temperature968.4 K
Maximum angular separation9.37 masReflected-light contrast 5.76e-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 coverage67%0% median composite-to-default difference over shared parameters.
Host star & system
HostHD 18438
Spectral typeM2.5 III
Effective temperature3860 K
Radius88.475 R☉
Mass1.840 M☉
Distance224.1 pc / 731.1 ly
DiscoveryRadial Velocity, 2023