Ross 640

[ α=16.5h, δ=36.8° | DZ6 | d=15.9 pc ]
GJ 626.2 , GJ 9564
Best fit:
Tstar = 9480 ± 50 K , Lstar = 0.000814 ± 7e-06 LSun , Rstar = 0.01058 ± 8e-05 RSun