Finding Earth 2.0
TOI-5817 · G2 IV-V

TOI-5817 b

Rank #2242 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%measured

0.094

Earth-2.0 index

0.241

Earth Similarity Index

0%

Habitable-zone probability

3.08 R⊕

Radius

Planet

Mass10.300 M⊕measured
Bulk density1.930 g/cm³
Orbital period15.6103 days
Semi-major axis0.12230 au
Eccentricity0.200
Incident flux126.863 S⊕
Equilibrium temperature853.1 K
Transit-time σ at 203030.2 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.51 masReflected-light contrast 1.10e-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 coverage92%0% median composite-to-default difference over shared parameters.

Host star & system

HostTOI-5817
Spectral typeG2 IV-V
Effective temperature5770 K
Radius1.427 R☉
Mass0.970 M☉
Distance80.8 pc / 263.4 ly
DiscoveryTransit, 2025