BD-20 6558B

[ α=23.2h, δ=-19.6° | M4 | d=21.2 pc ]
GJ 2154 B
Best fit:
Tstar = 3180 ± 40 K , Lstar = 0.0109 ± 0.0002 LSun , Rstar = 0.344 ± 0.009 RSun