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Date: Tue, 20 Apr 1993 14:17:05 +0200
From: granslo@argo.uio.no
Subject: Observations of cataclysmic variables
*** VARIABLE STAR OBSERVATIONS - REPORT OF 1993 APRIL 20 ***
This report contain recent observations of cataclysmic variables.
Time system is Universal Time. All observations are by undersigned.
1. NOVAE AND RECURRENT NOVAE
Variable Date UT Magn Date UT Magn Date UT Magn
T CrB Apr 12.01 10.3 Apr 15.01 10.3 Apr 15.93 10.3
T CrB Apr 17.99 10.3 Apr 19.97 10.3
V1974 Cyg Apr 10.953 11.4 Apr 11.956 11.5 Apr 15.010 11.6
V1974 Cyg Apr 15.926 11.5 Apr 17.997 11.5 Apr 19.974 11.5
RS Oph Apr 12.02 11.4: Apr 18.04 11.5 Apr 20.05 11.5
T CrB and RS Oph were detected near minumum. V1974 Cyg (Nova 1992)
is fading slowly.
2. DWARF NOVAE
Variable Date UT Magn Date UT Magn Date UT Magn
SS Aur Apr 11.94 <13.2 Apr 15.01 11.1 Apr 15.93 11.2
SS Aur Apr 18.01 12.2 Apr 19.92 <13.2
TT Boo Apr 15.03 13.3 Apr 15.93 13.2 Apr 18.02 13.3
TT Boo Apr 19.96 13.5
Z Cam Apr 11.94 11.5 Apr 15.00 11.5 Apr 15.92 11.5
Z Cam Apr 17.99 11.5 Apr 19.92 11.5
SY Cnc Apr 11.93 12.9 Apr 19.95 13.0:
SS Cyg Apr 11.95 11.9 Apr 15.01 11.9 Apr 17.99 11.9
SS Cyg Apr 19.97 11.7
EM Cyg Apr 18.02 14.0: Apr 19.01 13.8:
AB Dra Apr 18.02 12.6 Apr 19.96 13.6
AH Her Apr 12.02 12.8 Apr 15.06 <13.0: Apr 18.02 <13.6
AH Her Apr 19.97 13.8:
AY Lyr Apr 20.00 13.1
TZ Per Apr 18.05 13.0 Apr 20.02 13.1
SU UMa Apr 11.93 <13.4 Apr 18.01 <13.4 Apr 19.96 13.6
Dwarf novae in outburst: SS Aur, TT Boo (supermaximum), AB Dra
and AY Lyr. Z Cam and TZ Per are apparently in standstill.
Regards,
Bjorn H. Granslo
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