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Norwegian Astronomical Society - Variable Star Section
VARIABLE STARS - REPORT OF 1992 OCTOBER 11
Recent visual observations by members of NAS.VSS. Time system is U.T.
Observers: DAH = H. Dahle (Oslo); GRL = B. H. Granslo (Fjellhamar);
MOK = O. Midtskogen (Tranby).
1. NOVAE AND RECURRENT NOVAE
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Variable 1992 UT Magn Obs 1992 UT Magn Obs 1992 UT Magn Obs
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T CrB Oct 4.80 10.3 GRL Oct 10.79 10.2 DAH Oct 10.84 10.4 GRL
N1992 Cyg Oct 4.785 9.4 MOK Oct 6.837 9.4 MOK Oct 7.837 9.2 DAH
N1992 Cyg Oct 9.998 9.1 DAH Oct 10.895 9.1 GRL
GK Per Oct 4.91 13.3 MOK Oct 6.87 13.3 MOK Oct 7.04 13.2 GRL
GK Per Oct 9.17 13.3 GRL Oct 10.99 13.1 DAH
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2. DWARF NOVAE
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Variable 1992 UT Magn Obs 1992 UT Magn Obs 1992 UT Magn Obs
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RX And Oct 9.17 <13.3 GRL Oct 10.02 13.7: DAH Oct 10.82 13.8 DAH
SS Aur Oct 7.02 <13.5: GRL Oct 9.12 <13.8 GRL Oct 10.00 <13.2 DAH
SS Aur Oct 10.91 11.1 GRL Oct 10.98 11.1 DAH
Z Cam Oct 7.02 11.7 GRL Oct 9.01 11.8 GRL Oct 10.90 11.6 GRL
KU Cas Oct 11.01 13.2: DAH
SS Cyg Oct 7.01 10.3 GRL Oct 7.84 10.5 DAH Oct 9.01 11.3 GRL
SS Cyg Oct 10.00 11.4 DAH Oct 10.81 11.5 DAH Oct 10.89 11.7 GRL
EM Cyg Oct 4.80 14.0 DAH Oct 6.87 14.0 DAH Oct 10.81 14.1 DAH
EY Cyg Oct 2.77 14.5 MOK Oct 4.78 <14.4 MOK Oct 6.83 14.2 MOK
AH Her Oct 6.89 11.5 DAH Oct 10.81 11.4 DAH Oct 10.84 11.4: GRL
CZ Ori Oct 7.02 12.7 GRL Oct 9.17 12.2 GRL Oct 11.03 13.0 DAH
RU Peg Oct 4.84 12.6 GRL Oct 6.85 12.7 DAH Oct 7.84 12.5: DAH
RU Peg Oct 10.02 12.7 DAH Oct 10.83 12.7 DAH Oct 10.89 12.6: GRL
TZ Per Oct 9.17 13.2 GRL Oct 10.00 13.2: DAH Oct 10.83 13.2 DAH
KT Per Oct 6.38 <13.2 DAH Oct 7.85 12.5 DAH Oct 9.17 12.5 GRL
KT Per Oct 10.02 13.0 DAH Oct 10.83 <13.2 DAH
CH UMa Oct 4.93 14.8 MOK Oct 6.88 14.7 MOK Oct 11.05 <13.3 DAH
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Dwarf novae in outburst: SS Aur (on Oct 10/11), KU Cas (?), SS Cyg (fading
after a short maximum), AH Her (bright maximum), CZ Ori and KT Per. Z Cam
and TZ Per are apparently in a standstill. RX And, EM Cyg, EY Cyg, RU Peg
and CH UMa were seen near minimum.
3. OTHER VARIABLES
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Variable 1992 UT Magn Obs 1992 UT Magn Obs 1992 UT Magn Obs
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Z And Oct 7.03 10.8 GRL Oct 9.18 10.7 GRL Oct 10.89 10.8 GRL
R CrB Oct 4.80 6.1 GRL Oct 10.79 6.0 DAH Oct 10.84 6.0 GRL
AX Per Oct 7.04 12.2 GRL Oct 9.17 12.3 GRL Oct 10.89 12.2 GRL
FG Sge Oct 6.89 12.5 MOK Oct 10.82 12.5 DAH Oct 10.86 12.7 GRL
RR Tau Oct 7.04 10.8 GRL Oct 9.18 10.8 GRL Oct 10.93 11.2 GRL
SU Tau Oct 7.05 9.6 GRL Oct 9.18 9.6 GRL Oct 11.02 9.6 DAH
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The symbiotic variables Z And and AX Per were seen near minimum. The R Cor.
Bor. stars R CrB and SU Tau were seen near maximum. RR Tau (type Inas)
has been bright during since august. The fade of FG Sge has apparently
stopped.
Bjorn H. Granslo
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