Finding Earth 2.0
GJ 3138 · M0

GJ 3138 b

Rank #2173 of the ranked catalogue · Discovered by Radial Velocity in 2017

HZ 0%M sin i

0.095

Earth-2.0 index

0.328

Earth Similarity Index

0%

Habitable-zone probability

1.18 R⊕

Radius

Planet

Mass1.780 M⊕M sin i
Bulk density5.950 g/cm³
Orbital period1.2200 days
Semi-major axis0.01970 au
Eccentricity0.190
Incident flux118.100 S⊕
Equilibrium temperature838.0 K
Maximum angular separation0.69 masReflected-light contrast 6.23e-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 coverage75%0% median composite-to-default difference over shared parameters.

Host star & system

HostGJ 3138
Spectral typeM0
Effective temperature3717 K
Radius0.500 R☉
Mass0.681 M☉
Distance28.5 pc / 92.9 ly
DiscoveryRadial Velocity, 2017