Finding Earth 2.0
GJ 180 · M3

GJ 180 b

Rank #234 of the ranked catalogue · Discovered by Radial Velocity in 2014

HZ 0%M sin i

0.122

Earth-2.0 index

0.720

Earth Similarity Index

0%

Habitable-zone probability

2.43 R⊕

Radius

Planet

Mass6.490 M⊕M sin i
Bulk density2.490 g/cm³
Orbital period17.1330 days
Semi-major axis0.09200 au
Eccentricity0.070
Incident flux1.536 S⊕
Equilibrium temperature283.0 K
Maximum angular separation7.71 masReflected-light contrast 1.21e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostGJ 180
Spectral typeM3
Effective temperature3371 K
Radius0.413 R☉
Mass0.430 M☉
Distance11.9 pc / 38.9 ly
DiscoveryRadial Velocity, 2014