LP 263-64

[ α=11.1h, δ=36.7° | M3.5V | d=22.8 pc ]
GJ 3639
Best fit:
Tstar = 3209 ± 6 K , Lstar = 0.01177 ± 8e-05 LSun , Rstar = 0.351 ± 0.002 RSun