LSPM J1921+4230

[ α=19.4h, δ=42.5° | M2.0V | d=31.3 pc ]
TYC 3142-1028-1
Best fit:
Tstar = 3570 ± 20 K , Lstar = 0.053 ± 0.001 LSun , Rstar = 0.6 ± 0.01 RSun