Finding Earth 2.0
GJ 180 · M3

GJ 180 d

Rank #980 of the ranked catalogue · Discovered by Radial Velocity in 2020

HZ 0%M sin i

0.106

Earth-2.0 index

0.508

Earth Similarity Index

0%

Habitable-zone probability

2.66 R⊕

Radius

Planet

Mass7.560 M⊕M sin i
Bulk density2.210 g/cm³
Orbital period106.3000 days
Semi-major axis0.30900 au
Eccentricity0.140
Incident flux0.136 S⊕
Equilibrium temperature154.4 K
Maximum angular separation25.88 masReflected-light contrast 1.29e-8 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, 2020