NAME Kapteyn's star

[ α=5.2h, δ=-45.0° | M1VIp | d=3.9 pc ]
GJ 191 , HD 33793 , HIP 24186 , TYC 8078-1749-1
Best fit:
Tstar = 3744 ± 8 K , Lstar = 0.0125 ± 0.0001 LSun , Rstar = 0.266 ± 0.002 RSun