TOI-921
TOI-921 b
Rank #4853 of the ranked catalogue · Discovered by Transit in 2026
HZ 0%inferred
0.070
Earth-2.0 index
0.161
Earth Similarity Index
0%
Habitable-zone probability
3.53 R⊕
Radius
Planet
Mass12.200 M⊕inferred
Bulk density1.520 g/cm³
Orbital period5.1287 days
Semi-major axis— au
Eccentricity—
Incident flux426.768 S⊕
Equilibrium temperature1155.3 K
Transit-time σ at 203020.0 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.21 masReflected-light contrast 5.90e-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-921
Spectral typeF
Effective temperature6012 K
Radius1.142 R☉
Mass1.130 M☉
Distance294.0 pc / 958.9 ly
DiscoveryTransit, 2026