Finding Earth 2.0
TOI-444 · K1/2 V

TOI-444 b

Rank #1904 of the ranked catalogue · Discovered by Transit in 2023

HZ 0%inferred

0.097

Earth-2.0 index

0.383

Earth Similarity Index

0%

Habitable-zone probability

2.77 R⊕

Radius

Planet

Mass8.100 M⊕inferred
Bulk density2.090 g/cm³
Orbital period17.9636 days
Semi-major axis0.13300 au
Eccentricity
Incident flux23.469 S⊕
Equilibrium temperature559.5 K
Transit-time σ at 203010.7 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation2.32 masReflected-light contrast 7.53e-8 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 coverage73%0% median composite-to-default difference over shared parameters.

Host star & system

HostTOI-444
Spectral typeK1/2 V
Effective temperature5225 K
Radius0.779 R☉
Mass0.960 M☉
Distance57.4 pc / 187.2 ly
DiscoveryTransit, 2023