Distance modulus distribution of the X‐ray emission stars selected by JTP97. The white histogram with solid line is the DM distribution of all the photometric members (V = 11–17 mag) from Fig. 7. The fine‐shaded and coarse‐shaded histogram represent, respectively, the DM distribution of bright (V = 11–13 mag) and faint stars (V = 13–15 mag), while the dotted histogram is that of the total JTP97 samples fainter than V = 11 mag.