Finding Earth 2.0
TOI-771 · M3

TOI-771 b

Rank #148 of the ranked catalogue · Discovered by Transit in 2024

HZ 0%measured

0.127

Earth-2.0 index

0.539

Earth Similarity Index

0%

Habitable-zone probability

1.36 R⊕

Radius

Planet

Mass2.470 M⊕measured
Bulk density5.400 g/cm³
Orbital period2.3260 days
Semi-major axis0.02080 au
Eccentricity0.055
Incident flux14.000 S⊕
Equilibrium temperature491.7 K
Transit-time σ at 20302.5 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.82 masReflected-light contrast 7.42e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · 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-771
Spectral typeM3
Effective temperature3370 K
Radius0.232 R☉
Mass0.220 M☉
Distance25.3 pc / 82.4 ly
DiscoveryTransit, 2024