Finding Earth 2.0
TOI-5800 · K3 V

TOI-5800 b

Rank #2599 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%measured

0.091

Earth-2.0 index

0.220

Earth Similarity Index

0%

Habitable-zone probability

2.46 R⊕

Radius

Planet

Mass9.500 M⊕measured
Bulk density3.460 g/cm³
Orbital period2.6279 days
Semi-major axis0.03440 au
Eccentricity0.300
Incident flux274.163 S⊕
Equilibrium temperature1034.3 K
Transit-time σ at 20305.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.80 masReflected-light contrast 8.88e-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-5800
Spectral typeK3 V
Effective temperature4850 K
Radius0.773 R☉
Mass0.778 M☉
Distance42.9 pc / 139.9 ly
DiscoveryTransit, 2025