TOI-1291
TOI-1291 b
Rank #5439 of the ranked catalogue · Discovered by Transit in 2026
HZ 0%inferred
0.058
Earth-2.0 index
0.096
Earth Similarity Index
0%
Habitable-zone probability
5.64 R⊕
Radius
Planet
Mass27.100 M⊕inferred
Bulk density0.831 g/cm³
Orbital period7.1620 days
Semi-major axis— au
Eccentricity—
Incident flux1230.420 S⊕
Equilibrium temperature1505.5 K
Transit-time σ at 203011.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.18 masReflected-light contrast 9.24e-7 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 coverage50%0% median composite-to-default difference over shared parameters.
Host star & system
HostTOI-1291
Spectral typeF
Effective temperature6140 K
Radius1.811 R☉
Mass1.200 M☉
Distance428.1 pc / 1396.3 ly
DiscoveryTransit, 2026