LHS 1903 · M
LHS 1903 c
Rank #334 of the ranked catalogue · Discovered by Transit in 2026
HZ 0%measured
0.118
Earth-2.0 index
0.465
Earth Similarity Index
0%
Habitable-zone probability
2.05 R⊕
Radius
Planet
Mass4.550 M⊕measured
Bulk density2.910 g/cm³
Orbital period6.2262 days
Semi-major axis0.05387 au
Eccentricity0.089
Incident flux16.200 S⊕
Equilibrium temperature510.0 K
Transit-time σ at 203024.0 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.51 masReflected-light contrast 2.50e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources2 · 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
HostLHS 1903
Spectral typeM
Effective temperature3664 K
Radius0.539 R☉
Mass0.538 M☉
Distance35.7 pc / 116.4 ly
DiscoveryTransit, 2026