Fermi team reported that the object was in high state in gamma-ray region. The object in optical band was also brightening up. We show the light curve in V band, in which the magnitude was corrected the reddening, and the V-J color variation.
Data policy: Please contact Dr. Makoto Uemura (uemuram_at_hiroshima-u.ac.jp)
if you want to use the data shown in the blog for your research.