GJ 508.2 · M1.0 V
GJ 508.2 b
Discovered by Radial Velocity in 2025
HZ 0%M sin i
—
Earth-2.0 index
—
Earth Similarity Index
0%
Habitable-zone probability
— R⊕
Radius
Planet
Mass587.983 M⊕M sin i
Bulk density—
Orbital period5300.0000 days
Semi-major axis4.85000 au
Eccentricity0.270
Incident flux0.003 S⊕
Equilibrium temperature56.8 K
Maximum angular separation291.51 mas
Composite parameter sources4 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage80%0% median composite-to-default difference over shared parameters.
Host star & system
HostGJ 508.2
Spectral typeM1.0 V
Effective temperature3720 K
Radius0.530 R☉
Mass0.540 M☉
Distance16.6 pc / 54.3 ly
DiscoveryRadial Velocity, 2025