[vsnet-alert 13522] BL Lac major brightening

[Taichi Kato]

   BL Lac has been reported to be undergoing a major brightening.
Taking several frames per night will help detecting intranight variations.

  YYYYMMDD(UT)   mag  observer
  20101226.949  15.24V  (Stefan Karge)
  20110103.817   149  (Gary Poyner)
  20110108.781   150  (Gary Poyner)
  20110110.906  15.00V  (Stefan Karge)
  20110121.821  14.93V  (Miguel Rodriguez)
  20110122.797  15.10V  (Miguel Rodriguez)
  20110123.817  14.98V  (Miguel Rodriguez)
  20110125.796  15.10V  (Miguel Rodriguez)
  20110311.508  14.53V  (Stefan Karge)
  20110330.100  <143  (Pavol A. Dubovsky)
  20110404.087   150: (Pavol A. Dubovsky)
  20110411.085   153  (Pavol A. Dubovsky)
  20110411.444  15.20V  (Stefan Karge)
  20110417.476  15.19V  (Stefan Karge)
  20110505.025   148  (Pavol A. Dubovsky)
  20110506.012   147  (Pavol A. Dubovsky)
  20110507.448  14.48V  (Stefan Karge)
  20110512.035   147  (Pavol A. Dubovsky)
  20110513.069   146  (Klaus Wenzel)
  20110517.426  14.78V  (Stefan Karge)
  20110524.408  14.27V  (Stefan Karge)
  20110526.062   143  (Klaus Wenzel)
  20110527.003   137  (Pavol A. Dubovsky)
  20110528.353  13.63V  (Stefan Karge)
  20110530.035   136  (Klaus Wenzel)
  20110530.994   141  (Pavol A. Dubovsky)
  20110601.083   135  (Gary Poyner)
  20110602.957   141  (Stefan Karge)
  20110603.065   138  (Gary Poyner)
  20110604.042   144  (Klaus Wenzel)
  20110604.062   144  (Gary Poyner)
  20110605.016   144  (Pavol A. Dubovsky)
  20110606.006   145  (Pavol A. Dubovsky)
  20110607.994   145  (Pavol A. Dubovsky)
  20110612.044   147  (Gary Poyner)
  20110626.981   145  (Pavol A. Dubovsky)
  20110627.047   145  (Gary Poyner)
  20110627.926   145  (Klaus Wenzel)
  20110629.047   145  (Gary Poyner)
  20110704.948   143  (Klaus Wenzel)
  20110706.913   144  (Klaus Wenzel)
  20110709.033   145  (Gary Poyner)
  20110710.024   144  (Klaus Wenzel)
  20110715.056   144  (Gary Poyner)
  20110717.983   136  (Klaus Wenzel)
  20110721.899   133  (Jose Ripero)