Finding Earth 2.0
TOI-1231 · M3 V

TOI-1231 b

Rank #109 of the ranked catalogue · Discovered by Transit in 2021

HZ 0%measured

0.130

Earth-2.0 index

0.600

Earth Similarity Index

0%

Habitable-zone probability

3.65 R⊕

Radius

Planet

Mass15.400 M⊕measured
Bulk density1.740 g/cm³
Orbital period24.2456 days
Semi-major axis0.12880 au
Eccentricity0.087
Incident flux1.930 S⊕
Equilibrium temperature299.6 K
Transit-time σ at 203014.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation4.66 masReflected-light contrast 1.39e-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

HostTOI-1231
Spectral typeM3 V
Effective temperature3553 K
Radius0.476 R☉
Mass0.485 M☉
Distance27.6 pc / 90.1 ly
DiscoveryTransit, 2021