G 21-7

[ α=18.3h, δ=1.5° | M3V | d=15.9 pc ]
GJ 708.3 , GJ 9621
Best fit:
Tstar = 3364 ± 5 K , Lstar = 0.01176 ± 8e-05 LSun , Rstar = 0.319 ± 0.002 RSun