GJ 581 · M3.0 V
GJ 581 e
Rank #201 of the ranked catalogue · Discovered by Radial Velocity in 2009
HZ 0%measured
0.124
Earth-2.0 index
0.529
Earth Similarity Index
0%
Habitable-zone probability
1.38 R⊕
Radius
Planet
Mass2.480 M⊕measured
Bulk density5.190 g/cm³
Orbital period3.1481 days
Semi-major axis0.02799 au
Eccentricity0.012
Incident flux15.783 S⊕
Equilibrium temperature506.7 K
Maximum angular separation4.44 masReflected-light contrast 4.22e-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 coverage67%0% median composite-to-default difference over shared parameters.
Host star & system
HostGJ 581
Spectral typeM3.0 V
Effective temperature3500 K
Radius0.302 R☉
Mass0.295 M☉
Distance6.3 pc / 20.5 ly
DiscoveryRadial Velocity, 2009