Finding Earth 2.0
WASP-188

WASP-188 b

Rank #5294 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%measured

0.062

Earth-2.0 index

0.073

Earth Similarity Index

0%

Habitable-zone probability

14.82 R⊕

Radius

Planet

Mass458.626 M⊕measured
Bulk density0.780 g/cm³
Orbital period5.7489 days
Semi-major axis0.07200 au
Eccentricity0.000
Incident flux1278.000 S⊕
Equilibrium temperature1519.8 K
Transit-time σ at 20304.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.11 masReflected-light contrast 7.35e-6 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

HostWASP-188
Spectral typeF
Effective temperature6850 K
Radius1.830 R☉
Mass1.500 M☉
Distance675.3 pc / 2202.5 ly
DiscoveryTransit, 2025