Finding Earth 2.0
TOI-3523 A

TOI-3523 A b

Rank #5493 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%measured

0.057

Earth-2.0 index

0.055

Earth Similarity Index

0%

Habitable-zone probability

15.97 R⊕

Radius

Planet

Mass435.425 M⊕measured
Bulk density0.587 g/cm³
Orbital period2.3046 days
Semi-major axis0.03559 au
Eccentricity0.047
Incident flux2590.000 S⊕
Equilibrium temperature1813.4 K
Transit-time σ at 20301.1 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.06 masReflected-light contrast 3.50e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources2 · 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-3523 A
Spectral typeF
Effective temperature6450 K
Radius1.448 R☉
Mass1.131 M☉
Distance645.3 pc / 2104.7 ly
DiscoveryTransit, 2025