From the 2MASS magnitudes (J=10.884 H=10.293 K=10.010) the star is an M4 V, so likely a flare star. -- prof. Roberto Nesci, associated to Istituto Nazionale di Astrofisica, (National Institute of Astrophysics) INAF-IAPS, via Fosso del Cavaliere 100, 00133 Roma, Italia