LHS 1903 · M
LHS 1903 b
Rank #768 of the ranked catalogue · Discovered by Transit in 2026
HZ 0%measured
0.109
Earth-2.0 index
0.362
Earth Similarity Index
0%
Habitable-zone probability
1.38 R⊕
Radius
Planet
Mass3.280 M⊕measured
Bulk density6.820 g/cm³
Orbital period2.1555 days
Semi-major axis0.02656 au
Eccentricity0.015
Incident flux66.660 S⊕
Equilibrium temperature726.3 K
Transit-time σ at 20307.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.74 masReflected-light contrast 4.70e-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