BL Lac very bright (cont'd) The recent brightening of BL Lac has been confirmed by several observers. Time-resolved photometry is encouraged to detect short-term variation (as in 1997). YYMMDD(UT) mag observer 990710.033 142 (C. P. Jones) 990710.949 145 (G. Poyner) 990710.986 145 (C. P. Jones) 990710.990 146 (G. Poyner) 990711.067 146 (G. Poyner) 990711.948 146 (G. Poyner) 990712.972 146 (G. Poyner) 990713.032 147 (G. Poyner) 990713.992 147 (G. Poyner) 990716.940 144 (M. Verdenet) 990716.940 147 (G. Poyner) 990717.044 148 (G. Poyner) 990717.940 136 (M. Verdenet) 990718.036 138 (C. P. Jones) 990718.433 137V (L. Cook) 990720.972 136 (C. P. Jones)