Finding Earth 2.0
WASP-102

WASP-102 b

Rank #5402 of the ranked catalogue · Discovered by Transit in 2025

HZ 0%measured

0.059

Earth-2.0 index

0.062

Earth Similarity Index

0%

Habitable-zone probability

14.91 R⊕

Radius

Planet

Mass197.689 M⊕measured
Bulk density0.320 g/cm³
Orbital period2.7098 days
Semi-major axis0.04100 au
Eccentricity0.000
Incident flux1293.000 S⊕
Equilibrium temperature1524.3 K
Transit-time σ at 20300.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.08 masReflected-light contrast 2.29e-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

HostWASP-102
Spectral typeG
Effective temperature5990 K
Radius1.375 R☉
Mass1.080 M☉
Distance535.7 pc / 1747.2 ly
DiscoveryTransit, 2025