Finding Earth 2.0
GJ 1132 · M4.5 V

GJ 1132 b

Rank #181 of the ranked catalogue · Discovered by Transit in 2015

HZ 0%measured

0.125

Earth-2.0 index

0.516

Earth Similarity Index

0%

Habitable-zone probability

1.19 R⊕

Radius

Planet

Mass1.837 M⊕measured
Bulk density5.970 g/cm³
Orbital period1.6289 days
Semi-major axis0.01570 au
Eccentricity0.012
Incident flux19.300 S⊕
Equilibrium temperature532.8 K
Transit-time σ at 20300.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.25 masReflected-light contrast 1.00e-6 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

HostGJ 1132
Spectral typeM4.5 V
Effective temperature3229 K
Radius0.221 R☉
Mass0.195 M☉
Distance12.6 pc / 41.1 ly
DiscoveryTransit, 2015