Ross 991

[ α=12.8h, δ=46.6° | M2.5V | d=20.2 pc ]
GJ 3748 , HIP 62374 , TYC 3459-5-1
Best fit:
Tstar = 3430 ± 8 K , Lstar = 0.0359 ± 0.0002 LSun , Rstar = 0.536 ± 0.004 RSun