We update the data of OJ 287. The object showed a violent variability. The amplitude of the magnitude since JD 2455000 was about 2 mag. The figure shows the light curve in the V band 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.