Finding Earth 2.0
NGTS-39 · F9 V

NGTS-39 b

Rank #1773 of the ranked catalogue · Discovered by Transit in 2026

HZ 0%measured

0.098

Earth-2.0 index

0.271

Earth Similarity Index

0%

Habitable-zone probability

12.20 R⊕

Radius

Planet

Mass466.254 M⊕measured
Bulk density1.411 g/cm³
Orbital period58.2047 days
Semi-major axis0.30770 au
Eccentricity0.386
Incident flux16.706 S⊕
Equilibrium temperature513.9 K
Transit-time σ at 20302.5 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.10 masReflected-light contrast 2.73e-7 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 coverage92%0% median composite-to-default difference over shared parameters.

Host star & system

HostNGTS-39
Spectral typeF9 V
Effective temperature6053 K
Radius1.160 R☉
Mass1.160 M☉
Distance278.4 pc / 908.0 ly
DiscoveryTransit, 2026