Finding Earth 2.0
TOI-1803

TOI-1803 b

Rank #1263 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%measured

0.103

Earth-2.0 index

0.304

Earth Similarity Index

0%

Habitable-zone probability

2.99 R⊕

Radius

Planet

Mass10.320 M⊕measured
Bulk density2.150 g/cm³
Orbital period6.2933 days
Semi-major axis0.06000 au
Eccentricity0.000
Incident flux58.000 S⊕
Equilibrium temperature701.5 K
Transit-time σ at 203023.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.50 masReflected-light contrast 4.31e-7 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-1803
Spectral typeK
Effective temperature4687 K
Radius0.715 R☉
Mass0.756 M☉
Distance119.2 pc / 388.9 ly
DiscoveryTransit, 2025