BL Lac is experiencing a bright outburst as can be seen from the latest AAVSO visual and CCDV data.
BL LAC 2012 Jul 23.9035 13.5 Vis. DPV
BL LAC 2012 Jul 23.8931 13.4 Vis. KWO
BL LAC 2012 Jul 23.8924 13.0 Vis. WKL
BL LAC 2012 Jul 23.4071 13.213 V HBB 0.013
BL LAC 2012 Jul 23.4005 13.202 V HBB 0.004
BL LAC 2012 Jul 23.3968 13.196 V HBB 0.004
BL LAC 2012 Jul 23.3932 13.19 V HBB 0.005
BL LAC 2012 Jul 23.0570 13.2 Vis. PYG
BL LAC 2012 Jul 22.3754 13.665 V HBB 0.004
BL LAC 2012 Jul 21.9549 13.1 Vis. WKL
BL LAC 2012 Jul 21.2129 13.761 V HBB 0.004
BL LAC 2012 Jul 21.0162 13.6 Vis. OJR
BL LAC 2012 Jul 20.0158 13.7 Vis. OJR
BL LAC 2012 Jul 18.9785 14.4 Vis. DPV
BL LAC 2012 Jul 17.8993 14.0 Vis. OJR
BL Lac 2012 Jul 12.2813 14.5 Vis. SXN
BL LAC 2012 Jul 11.9201 14.6 Vis. WKL
BL LAC 2012 Jul 9.1952 14.38 V HBB 0.01
BL LAC 2012 Jul 7.9271 14.5 Vis. WKL
BL LAC 2012 Jul 3.0320 14.6 Vis. PYG
As can be seen from this 3600 day light curve, BL Lac has not been this bright since 2004.
It appears that BL Lac is re-brightening after falling to approx. magn. 14.7 on 8/12:
BL LAC;2456164.61563;13.510;0.022;V
Regards, Doug
BL Lac,2456164.88620,13.879,0.028,V,NO,ABS,ENSEMBLE,na,129,13.001,1.2821,na,8292AJY,na