Ross 271

[ α=22.2h, δ=18.4° | M2V | d=11.7 pc ]
GJ 851 , HIP 109555 , TYC 1685-1853-1
Best fit:
Tstar = 3520 ± 10 K , Lstar = 0.0443 ± 0.0003 LSun , Rstar = 0.566 ± 0.004 RSun