Barnard's star · M3.5-4 V
Barnard e
Rank #134 of the ranked catalogue · Discovered by Radial Velocity in 2025
HZ 0%M sin i
0.128
Earth-2.0 index
0.738
Earth Similarity Index
0%
Habitable-zone probability
0.64 R⊕
Radius
Planet
Mass0.193 M⊕M sin i
Bulk density4.100 g/cm³
Orbital period6.7392 days
Semi-major axis0.03810 au
Eccentricity0.040
Incident flux2.446 S⊕
Equilibrium temperature317.9 K
Maximum angular separation20.86 masReflected-light contrast 4.85e-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 coverage75%0% median composite-to-default difference over shared parameters.
Host star & system
HostBarnard's star
Spectral typeM3.5-4 V
Effective temperature3195 K
Radius0.185 R☉
Mass0.162 M☉
Distance1.8 pc / 6.0 ly
DiscoveryRadial Velocity, 2025