Finding Earth 2.0
TOI-6478 · M4.0+/-0.5

TOI-6478 b

Rank #5502 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%inferred

0.056

Earth-2.0 index

0.078

Earth Similarity Index

0%

Habitable-zone probability

4.60 R⊕

Radius

Planet

Mass19.200 M⊕inferred
Bulk density1.080 g/cm³
Orbital period34.0050 days
Semi-major axis0.11360 au
Eccentricity
Incident flux0.000 S⊕
Equilibrium temperature33.5 K
Transit-time σ at 20303.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation2.94 masReflected-light contrast 2.85e-7 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-6478
Spectral typeM4.0+/-0.5
Effective temperature3230 K
Radius0.234 R☉
Mass0.230 M☉
Distance38.6 pc / 125.9 ly
DiscoveryTransit, 2025