NAME Barnard's star

[ α=18.0h, δ=4.7° | M4V | d=1.8 pc ]
GJ 699 , HIP 87937 , NAME Barnard Star , NAME Barnard's star , TYC 425-2502-1
Best fit:
Tstar = 3074 ± 4 K , Lstar = 0.00328 ± 2e-05 LSun , Rstar = 0.202 ± 0.0009 RSun