[vsnet-alert 3745] DK Cas in outburst

[Patrick Schmeer <extpasc@rz.uni-sb.de>]

CCD magnitudes obtained by P. Schmeer, Bischmisheim, Germany:

DK CASSIOPEIAE  (UG)
CASDK 991121.156 <180C Scp
CASDK 991127.137  153C Scp
Sequence:   USNO-A2.0 (red magnitudes)
Instrument: IRO (0.5-m RCT + AP-8)

First outburst (and positive observation) ever reported to VSNet!
(Gary Poyner's estimate for 1998 Aug. 21.974 UT was a negative one and should
read '<14.2')
DK Cas is according to the GCVS an SS Cyg-type dwarf nova with a photographic
magnitude range of 15.3 to about 19.5 and a mean cycle length of approximately
96 days.
The following USNO-A2.0 data are available for DK Cas (in outburst):
R.A. 00h18m07.907s  Decl. +57o26'07.43"  (J2000.0)  r= 16.5, b= 17.7
A finding chart is in Downes and Shara (1993).
Time-resolved photometry is encouraged.
 
Regards,
Patrick
 
P.S.:
Earlier today I had informed Taichi Kato about this outburst. He 'had a look
at DK Cas and found it clearly visible (mag 15 or even brighter?)'.