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Date: Sat, 20 Mar 1993 18:27:48 +0100
From: granslo@argo.uio.no
Subject: VS Observations (Report of 1993 March 20)
Norwegian Astronomical Society - Variable Star Section
*** VARIABLE STAR OBSERVATIONS - REPORT OF 1993 MARCH 20 ***
This report contains visual observations on eruptive and cataclysmic
variables since 1993 March 1. Time system is Universal Time. Observers:
B. H. Granslo, Fjellhamar, Norway (20.3-cm SCT, Binoculars 7x35);
O. Midtskogen, Tranby, Norway (31.6-cm reflector).
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 2.02 10.3 GRL Mar 4.05 10.3 GRL Mar 9.97 10.3 GRL
T CrB Mar 11.03 10.3 GRL Mar 17.01 10.3 GRL Mar 17.95 10.2 GRL
T CrB Mar 18.95 10.3 GRL Mar 20.14 10.3 GRL (near minimum)
N1992 Cyg Mar 2.053 10.9 GRL Mar 4.050 10.9 GRL Mar 10.003 10.9 GRL
N1992 Cyg Mar 11.024 11.0 GRL Mar 17.016 11.1 GRL Mar 17.961 11.0 GRL
N1992 Cyg Mar 19.055 11.0 GRL Mar 20.063 11.2 GRL (fading slowly)
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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SS Aur Mar 2.05 <12.5 GRL Mar 4.06 <12.5 GRL Mar 9.97 11.6 GRL
SS Aur Mar 11.01 12.1: GRL Mar 17.00 <13.2 GRL Mar 17.94 <13.5: GRL
SS Aur Mar 20.06 <13.2 GRL (in outburst Mar 9/10 and Mar 10/11)
TT Boo Mar 17.99 <13.5: GRL Mar 20.15 <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 11.01 11.5 GRL Mar 17.00 11.5 GRL Mar 18.00 11.5 GRL
Z Cam Mar 18.95 11.4 GRL Mar 20.06 11.4 GRL (in standstill)
HT Cas Mar 20.13 <13.4 GRL
SY Cnc Mar 17.98 11.9 GRL
YZ Cnc Mar 17.01 12.1 GRL Mar 17.98 12.9 GRL Mar 20.06 <13.0: GRL
(normal outbrust Mar 16/17 and Mar 17/18)
SS Cyg Mar 2.05 12.0 GRL Mar 10.01 8.2 GRL Mar 11.02 8.3 GRL
SS Cyg Mar 17.01 8.5 GRL Mar 18.95 8.9 GRL Mar 20.10 9.1 GRL
(long outburst observed from Mar 9/10)
EM Cyg Mar 19.06 12.6 GRL Mar 20.10 12.6 GRL (in outburst)
EY Cyg Mar 20.10 <13.5: GRL
AB Dra Mar 17.99 <13.4 GRL Mar 20.06 <13.4 GRL
U Gem Mar 2.05 <12.3 GRL Mar 9.97 <11.9 GRL Mar 17.01 <13.0: GRL
U Gem Mar 17.98 <13.5: GRL Mar 19.905 9.3 GRL Mar 20.053 9.2 GRL
(in outburst Mar 19/20)
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 (bright outburst observed from Mar 16/17)
X Leo Mar 17.01 <13.0: GRL Mar 17.99 <13.5 GRL
TZ Per Mar 17.94 13.2 GRL Mar 20.13 13.4 GRL (in standstill?)
UV Per Mar 17.94 <13.5 GRL Mar 20.13 <13.7 GRL
KT Per Mar 20.13 <13.2 GRL
SU UMa Mar 2.047 11.4 GRL Mar 4.045 11.4 GRL Mar 9.971 11.9 GRL
SU UMa Mar 11.015 12.1 GRL Mar 17.00 <13.4 GRL Mar 17.99 <13.6: GRL
SU UMa Mar 20.056 13.1 GRL (supermaximum Mar 1/2 to Mar 10/11,
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
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 (short and faint
outburst 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 4.04 10.8 GRL Mar 11.02 10.9 GRL Mar 20.10 10.8 GRL
EG And Mar 17.06 7.6 GRL
RW Aur Mar 2.02 10.5 GRL Mar 4.06 10.8 GRL Mar 17.94 10.5 GRL
AB Aur Mar 17.94 6.8 GRL
XX Cam Mar 17.94 7.5 GRL
TX CVn Mar 4.05 9.9 GRL Mar 9.99 9.9 GRL Mar 17.03 9.9 GRL
TX CVn Mar 19.07 9.9 GRL
UV Cas Mar 4.04 10.7 GRL Mar 11.02 10.7 GRL Mar 17.06 10.7 GRL
UV Cas Mar 20.10 10.8 GRL
Gamma Cas Mar 11.04 2.1 GRL Mar 17.07 2.2 GRL
TAV Cas Mar 4.04 10.7 GRL Mar 9.98 10.8 GRL Mar 17.06 10.7 GRL
TAV Cas Mar 20.11 10.7 GRL
R CrB Mar 4.05 5.9 GRL Mar 10.02 5.9 GRL Mar 17.07 5.7 GRL
R CrB Mar 19.07 5.8 GRL (at maximum)
BF Cyg Mar 2.06 11.7 GRL Mar 19.06 12.0 GRL (faint)
CH Cyg Mar 2.05 8.5 GRL Mar 4.05 8.4 GRL Mar 19.06 8.4 GRL
CI Cyg Mar 2.06 10.9 GRL Mar 19.06 10.8 GRL
V482 Cyg Mar 2.06 11.1 GRL Mar 19.06 11.1 GRL
V1016 Cyg Mar 2.06 10.4 GRL Mar 4.05 10.4 GRL Mar 11.02 10.4 GRL
V1016 Cyg Mar 19.06 10.3 GRL
V1057 Cyg Mar 19.06 12.2 GRL
P Cyg Mar 2.06 4.8 GRL Mar 17.08 4.9 GRL
AG Dra Mar 4.05 9.8 GRL Mar 9.97 9.9 GRL Mar 17.04 9.9 GRL
AX Per Mar 17.06 11.7 GRL Mar 20.13 11.7 GRL
AG Peg Mar 20.16 8.7 GRL
V Sge Mar 20.14 10.2 GRL (bright)
FG Sge Mar 20.11 12.0 GRL (resolved from its companion, brightening?)
HM Sge Mar 20.14 11.2 GRL
RR Tau Mar 2.02 10.8 GRL Mar 17.94 10.7 GRL (bright)
RY Tau Mar 17.94 10.7 GRL
SU Tau Mar 2.01 10.1 GRL Mar 17.01 9.9 GRL Mar 17.94 9.9 GRL
(apparently slightly below maximum)
BP Tau Mar 17.94 12.2 GRL
CQ Tau Mar 17.94 10.8 GRL
WW Vul Mar 20.11 10.8 GRL
PU Vul Mar 20.14 11.2 GRL
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Kind regards,
Bjorn H. Granslo
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