G 28-21

[ α=22.9h, δ=9.9° | M3.0V | d=26.8 pc ]
GJ 9801 B
Best fit:
Tstar = 3310 ± 10 K , Lstar = 0.014 ± 0.0006 LSun , Rstar = 0.36 ± 0.008 RSun