Finding Earth 2.0
GJ 3138 · M0

GJ 3138 d

Rank #1111 of the ranked catalogue · Discovered by Radial Velocity in 2017

HZ 0%M sin i

0.105

Earth-2.0 index

0.439

Earth Similarity Index

0%

Habitable-zone probability

3.23 R⊕

Radius

Planet

Mass10.500 M⊕M sin i
Bulk density1.710 g/cm³
Orbital period257.8000 days
Semi-major axis0.69800 au
Eccentricity0.320
Incident flux0.100 S⊕
Equilibrium temperature142.9 K
Maximum angular separation24.52 masReflected-light contrast 3.72e-9 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