NGTS-31
NGTS-31 b
Rank #5338 of the ranked catalogue · Discovered by Transit in 2025
HZ 0%measured
0.061
Earth-2.0 index
0.073
Earth Similarity Index
0%
Habitable-zone probability
18.05 R⊕
Radius
Planet
Mass355.968 M⊕measured
Bulk density0.300 g/cm³
Orbital period4.1627 days
Semi-major axis0.06400 au
Eccentricity0.000
Incident flux643.000 S⊕
Equilibrium temperature1280.0 K
Transit-time σ at 20304.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.13 masReflected-light contrast 1.38e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · 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
HostNGTS-31
Spectral typeG
Effective temperature5710 K
Radius1.700 R☉
Mass0.960 M☉
Distance497.4 pc / 1622.2 ly
DiscoveryTransit, 2025