[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-obs 318] rapid fade of AK Cnc

  AK Cnc seems to have just entered a rapid decline phase as indicated
  by the CCD observations by D. Nogami & S. Masuda (Ouda Station, Kyoto
  University).  In spite of the peak brightness of the current outburst,
  the duration of the superoutburst of AK Cnc seems to be a little
  shorter than other TOADs (tremendous outburst amplitude dwarf novae).

  The observations on Mar. 20 indicated only a slight indication of
  superhumps (<~0.1 mag) superimposed on rapidly fading trend.

    mid-UT   AK-comp S.D.  N  band   approx. V-mag
 ---------------------------------   -------------
  950314.664  0.666 0.167 116 V          14.0      (*1)
  950315.508  0.898 0.140  46 V          14.2      (*1)
  950318.652  0.992 0.000   1 V          14.3      (*2)
  950320.598  2.287 0.101 101 V          15.6

  comparison: GSC 13.3

  (*1) strong moonlight and clouds
  (*2) gap in the clouds

Ouda team