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Date: Wed, 24 Mar 1993 22:04:34 +0100
From: granslo@argo.uio.no
Subject: Variable Stars (Report of 1993 Mar 24)
Norwegian Astronomical Society - Variable Star Section
*** VARIABLE STAR OBSERVATIONS - REPORT OF 1993 MARCH 24 ***
This report contains visual observations on eruptive and cataclysmic
variables since 1993 March 14. Time system is Universal Time. Observer:
B. H. Granslo, Fjellhamar, Norway (20.3-cm SCT, Binoculars 7x35);
O. Midtskogen, Svenskerud 127, N-3408 Tranby.
1. NOVAE AND RECURRENT NOVAE
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Variable Date UT Magn Obs Date UT Magn Obs Date UT Magn Obs
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T CrB Mar 17.01 10.3 GRL Mar 17.95 10.2 GRL Mar 18.95 10.3 GRL
T CrB Mar 20.14 10.3 GRL Mar 22.00 10.2 GRL Mar 23.94 10.2 GRL
Near minimum, but slightly brighter than in February.
V1974 Cyg Mar 17.016 11.1 GRL Mar 17.961 11.0 GRL Mar 19.055 11.0 GRL
V1974 Cyg Mar 20.063 11.2 GRL Mar 22.007 11.2 GRL Mar 23.953 11.2 GRL
Fading slowly. V1974 Cygni = Nova Cygni 1992.
RS Oph Mar 20.13 11.7 GRL
Near minimum.
GK Per Mar 17.93 13.1: GRL
Near minimum.
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2. DWARF NOVAE
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Variable Date UT Magn Obs Date UT Magn Obs Date UT Magn Obs
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RX And Mar 22.03 11.8: GRL
In outburst Mar 21/22?
SS Aur Mar 17.00 <13.2 GRL Mar 17.94 <13.5: GRL Mar 20.06 <13.2 GRL
SS Aur Mar 21.99 <13.5: GRL
TT Boo Mar 17.99 <13.5: GRL Mar 20.15 <13.5: GRL Mar 22.00 <13.9 GRL
TT Boo Mar 24.00 <13.5: GRL
Z Cam Mar 2.05 11.6 GRL Mar 4.05 11.5 GRL Mar 9.97 11.5 GRL
Z Cam Mar 17.00 11.5 GRL Mar 18.00 11.5 GRL Mar 18.95 11.4 GRL
Z Cam Mar 20.06 11.4 GRL Mar 22.00 11.5 GRL Mar 23.95 11.6 GRL
At standstill.
SY Cnc Mar 17.98 11.9 GRL Mar 21.99 13.0 GRL
Fading.
YZ Cnc Mar 17.01 12.1 GRL Mar 17.98 12.9 GRL Mar 20.06 <13.0: GRL
YZ Cnc Mar 21.99 <13.6 GRL
Normal outburst Mar 16/17 and Mar 17/18.
SS Cyg Mar 17.01 8.5 GRL Mar 18.95 8.9 GRL Mar 20.10 9.1 GRL
SS Cyg Mar 22.01 9.8 GRL Mar 23.94 10.6 GRL
Fading.
EM Cyg Mar 19.06 12.6 GRL Mar 20.10 12.6 GRL Mar 22.05 13.0 GRL
In outburst Mar 18/19 to Mar 21/22.
EY Cyg Mar 20.10 <13.5: GRL Mar 22.05 <13.5: GRL
AB Dra Mar 17.99 <13.4 GRL Mar 20.06 <13.4 GRL Mar 22.00 12.6 GRL
AB Dra Mar 23.94 12.8 GRL
In outburst Mar 21/22 and Mar 23/24.
U Gem Mar 17.01 <13.0: GRL Mar 17.98 <13.5: GRL Mar 19.905 9.3 GRL
U Gem Mar 20.053 9.2 GRL Mar 21.976 9.1 GRL Mar 23.933 9.2 GRL
In outburst from Mar 19/20. First maximum for nearly seven months.
IR Gem Mar 22.02 <13.2 GRL
AH Her Mar 17.01 11.1 GRL Mar 17.96 11.0 GRL Mar 19.05 11.4 GRL
AH Her Mar 20.14 11.7 GRL Mar 22.00 11.9 GRL Mar 23.98 13.0 GRL
Bright outburst from Mar 16/17.
X Leo Mar 17.01 <13.0: GRL Mar 17.99 <13.5 GRL Mar 21.95 <13.5 GRL
X Leo Mar 24.00 <13.0: GRL
TZ Per Mar 17.94 13.2 GRL Mar 20.13 13.4 GRL Mar 22.02 13.3 GRL
At standstill?
UV Per Mar 17.94 <13.5 GRL Mar 20.13 <13.7 GRL Mar 22.02 <13.5 GRL
KT Per Mar 20.13 <13.2 GRL Mar 22.03 12.3 GRL
In outburst Mar 21/22,
SU UMa Mar 17.00 <13.4 GRL Mar 17.99 <13.6: GRL Mar 20.056 13.1 GRL
SU UMa Mar 22.00 13.8 GRL Mar 23.98 <13.2 GRL
Normal outburst on Mar 19/20.
SW UMa Mar 17.01 <13.5 GRL Mar 17.99 <13.5 GRL Mar 20.06 <13.5 GRL
SW UMa Mar 22.00 <13.5 GRL Mar 23.98 <13.5 GRL
CH UMa Mar 14.81 13.4 MOK Mar 14.96 12.8 MOK Mar 17.00 <13.5: GRL
CH UMa Mar 17.99 <13.5: GRL Mar 20.06 <13.5: GRL Mar 22.00 <13.7 GRL
Short and faint outburst on Mar 14/15, confirmed by G. Hurst on Mar 15/16.
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3. OTHER CATACLYSMIC AND ERUPTIVE VARIABLES
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Variable Date UT Magn Obs Date UT Magn Obs Date UT Magn Obs
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Z And Mar 20.10 10.8 GRL Mar 22.02 10.8 GRL
RW Aur Mar 17.94 10.5 GRL Mar 22.01 10.5 GRL
TX CVn Mar 17.03 9.9 GRL Mar 19.07 9.9 GRL Mar 22.00 9.9 GRL
TX CVn Mar 23.94 9.9 GRL
UV Cas Mar 17.06 10.7 GRL Mar 20.10 10.8 GRL Mar 22.02 10.8 GRL
TAV Cas Mar 17.06 10.7 GRL Mar 20.11 10.7 GRL Mar 22.02 10.7 GRL
R CrB Mar 17.07 5.7 GRL Mar 19.07 5.8 GRL Mar 21.99 5.8 GRL
R CrB Mar 23.94 5.8 GRL
BF Cyg Mar 19.06 12.0 GRL Mar 22.05 12.1 GRL
CH Cyg Mar 19.06 8.4 GRL Mar 22.05 8.4 GRL Mar 23.95 8.3 GRL
CI Cyg Mar 19.06 10.8 GRL Mar 22.05 10.8 GRL
V482 Cyg Mar 19.06 11.1 GRL Mar 22.05 11.1 GRL
V1016 Cyg Mar 19.06 10.3 GRL Mar 22.05 10.3 GRL
V1057 Cyg Mar 19.06 12.2 GRL Mar 22.05 12.4 GRL
AG Dra Mar 17.04 9.9 GRL Mar 22.00 9.9 GRL Mar 23.94 9.9 GRL
AX Per Mar 17.06 11.7 GRL Mar 20.13 11.7 GRL Mar 22.03 11.7 GRL
AG Peg Mar 20.16 8.7 GRL
V Sge Mar 20.14 10.2 GRL
FG Sge Mar 20.11 12.0 GRL
RR Tau Mar 17.94 10.7 GRL Mar 22.01 10.6 GRL
SU Tau Mar 17.01 9.9 GRL Mar 17.94 9.9 GRL
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Kind regards,
Bjorn H. Granslo
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