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Norwegian Astronomical Society - Variable Star Section
VARIABLE STARS - REPORT OF 1992 DECEMBER 23
Visual observations by undersigned since 1992 Dec 1. Time system is U.T.
1. NOVAE AND RECURRENT NOVAE
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Variable 1992 UT Magn 1992 UT Magn 1992 UT Magn 1992 UT Magn
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T CrB Dec 13.12 10.3 Dec 20.13 10.4 (at minimum)
N1992 Cyg Dec 2.009 9.6 Dec 12.060 9.8 Dec 12.722 9.8 Dec 15.127 9.9
N1992 Cyg Dec 15.681 9.9 Dec 17.697 9.9 Dec 19.700 9.9 Dec 20.747 10.0
N1992 Cyg Dec 21.910 9.9 (fading slowly)
GK Per Dec 19.75 13.2 Dec 21.02 13.2 (at minimum)
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2. DWARF NOVAE
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Variable 1992 UT Magn 1992 UT Magn 1992 UT Magn 1992 UT Magn
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RX And Dec 11.93 11.3 Dec 12.82 11.7 Dec 17.77 <12.5 Dec 19.76 <13.3
RX And Dec 21.02 <13.1 (fading after maximum)
AR And Dec 19.76 <13.3 Dec 21.02 <12.6
SS Aur Dec 20.07 <13.2 Dec 21.02 <13.5:
Z Cam Dec 12.02 11.7 Dec 12.84 11.6 Dec 17.77 11.6 Dec 20.07 11.6
Z Cam Dec 20.96 11.7 Dec 21.90 11.7 (at standstill)
SY Cnc Dec 20.06 12.3 Dec 21.03 12.6 (fading after maximum)
YZ Cnc Dec 20.06 <13.6 Dec 21.03 <13.3:
SS Cyg Dec 2.01 12.0 Dec 12.73 12.0 Dec 13.67 12.0 Dec 15.68 11.8
SS Cyg Dec 17.70 8.2 Dec 19.70 8.2 Dec 20.75 8.3 Dec 21.90 8.3
SS Cyg Dec 22.70 8.3 (in a bright outburst)
EM Cyg Dec 19.73 12.7 (in outburst)
U Gem Dec 12.01 <11.4 Dec 15.11 <11.9 Dec 20.06 <13.8 Dec 21.03 <13.5:
U Gem Dec 21.90 <12.4
IR Gem Dec 20.06 <13.4 Dec 21.02 <13.4
X Leo Dec 20.05 12.6 Dec 21.03 12.5 (in outburst)
CZ Ori Dec 20.06 <13.3 Dec 21.02 <12.9
RU Peg Dec 12.78 10.7 Dec 13.66 10.8 Dec 15.68 10.8 Dec 17.70 11.2
RU Peg Dec 19.74 11.6 (in outburst and fading)
IP Peg Dec 12.78 13.5: (just glipsed)
TZ Per Dec 20.07 13.1 Dec 21.02 13.3: (at standstill?)
UV Per Dec 20.07 <13.5 Dec 21.02 <13.5:
KT Per Dec 19.75 <13.2
TY Psc Dec 19.76 <13.3:
SU UMa Dec 20.07 12.9 (in outburst)
SW UMa Dec 20.07 <13.5
CH UMa Dec 20.07 <13.5:
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Dwarf novae in outburst were RX And, SS Cyg, EM Cyg, X Leo, RU Peg, IP Peg
and SU UMa.
3. OTHER ERUPTIVE VARIABLES
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Variable 1992 UT Magn 1992 UT Magn 1992 UT Magn 1992 UT Magn
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Z And Dec 12.78 10.6 Dec 17.77 10.7 Dec 19.74 10.6 (normal)
EG And Dec 11.93 7.5 Dec 17.77 7.5 Dec 19.76 7.6 (normal)
TT Ari Dec 12.82 10.7 Dec 20.95 10.6 (near maximum)
RW Aur Dec 12.82 10.7 Dec 17.77 10.7 Dec 20.08 10.4 Dec 20.94 10.5
RW Aur Dec 21.91 10.6
XX Cam Dec 13.08 7.4 (R CrB star at maximum)
TX CVn Dec 15.12 11.1 Dec 20.09 9.9 (near minimum, normal)
UV Cas Dec 2.01 10.7 Dec 12.02 10.8 Dec 17.77 10.7 Dec 20.09 10.7
TAV Cas Dec 13.08 10.8 Dec 20.09 10.7 (normal?)
R CrB Dec 1.71 6.1 Dec 13.10 6.0 Dec 20.13 5.9 Dec 22.69 5.9
BF Cyg Dec 12.77 11.5 Dec 19.73 11.5
CH Cyg Dec 12.06 8.1 Dec 17.76 8.2 Dec 19.74 8.2 (rather bright)
CI Cyg Dec 12.77 10.9 Dec 19.73 11.0 (normal)
V482 Cyg Dec 12.77 11.1 Dec 19.74 11.1 (R CrB star at maximum)
V1016 Cyg Dec 12.78 10.5 Dec 19.74 10.5 (near maximum)
V1057 Cyg Dec 12.78 12.3 Dec 19.74 12.2
AG Dra Dec 13.07 9.9 Dec 15.12 9.9 Dec 20.09 9.9 (normal)
AG Peg Dec 12.78 8.9 Dec 19.74 8.9 (rather faint)
X Per Dec 12.03 6.5 Dec 20.14 6.4 (normal)
AX Per Dec 2.01 11.9 Dec 12.78 11.8 Dec 17.77 11.9 (rather faint)
V Sge Dec 12.77 <12.3 Dec 19.73 11.7 (rather faint)
FG Sge Dec 12.77 <12.5 Dec 19.73 12.2x Dec 20.74 13.2+ (still faint)
HM Sge Dec 12.77 11.2 Dec 19.73 11.2
T Tau Dec 12.82 9.9 Dec 20.08 9.8 Dec 21.91 9.8 (normal)
RR Tau Dec 12.83 12.3 Dec 17.77 11.2 Dec 20.08 11.0 Dec 20.94 10.9
RR Tau Dec 21.91 10.9 (brightening)
RY Tau Dec 12.82 10.7 Dec 17.78 10.8 Dec 20.08 10.7 Dec 20.93 10.7
RY Tau Dec 21.91 10.7 (rather faint)
SU Tau Dec 12.83 9.7 Dec 17.77 9.7 Dec 20.08 9.6 Dec 21.91 9.7
BP Tau Dec 12.82 12.1 Dec 17.78 12.1 Dec 20.08 12.2 Dec 20.93 12.2
BP Tau Dec 21.91 12.2 (normal)
BU Tau Dec 12.03 5.3 Dec 20.14 5.2 (normal)
CQ Tau Dec 12.83 11.1 Dec 15.12 11.1 Dec 17.77 11.0 Dec 20.08 10.4
CQ Tau Dec 20.94 10.5 Dec 21.91 10.4 (active)
WW Vul Dec 12.77 10.7 Dec 19.73 10.7 (normal)
PU Vul Dec 12.77 11.2 Dec 19.73 11.2
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TAV Cas = TAV 0033+59. Observations of FG Sge: x = combined magnitude, + =
resolved from companion.
Bjorn H. Granslo
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