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Norwegian Astronomical Society - Variable Star Section
VARIABLE STARS - REPORT OF 1992 NOVEMBER 13
Visual observations by members of NAS.VSS. Selected results since 1992 Oct 1.
Time system is U.T. Observers: DAH = H. Dahle (Oslo); GRL = B. H. Granslo
(Fjellhamar); HLS = L. T. Heen (Trondheim), HEL = H. Helbak (Slependen),
MOK = O. Midtskogen (Tranby), RII = K. Riibe (Bitterstad).
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 10.79 10.2 DAH Oct 10.84 10.4 GRL Nov 8.71 10.3 GRL
N1992 Cyg Oct 6.92 9.3 HEL Oct 11.8 10.0 RII Oct 11.84 9.3 HEL
N1992 Cyg Oct 12.038 9.1 GRL Oct 20.838 9.3 DAH Oct 29.926 9.4 GRL
N1992 Cyg Oct 31.71 9.6 HEL Nov 5.100 9.5 GRL Nov 7.100 9.5 GRL
N1992 Cyg Nov 8.081 9.6 GRL Nov 8.712 9.6 GRL
RS Oph Oct 4.90 10.9: GRL Nov 8.72 11.2: GRL
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Nova Cygni has faded slowly during the last months. The recurrent novae
T CrB and RS Oph were detected near minimum.
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 10.82 13.8 DAH Oct 29.93 11.5 GRL
Z Cam Oct 10.90 11.6 GRL Oct 12.04 11.7 GRL Oct 29.93 11.6 GRL
Z Cam Nov 5.11 11.7 GRL Nov 7.10 11.7 GRL Oct 8.08 11.7 GRL
SS Cyg Oct 1.78 8.5 HEL Oct 2.81 8.4 HEL Oct 6.89 10.4 HEL
SS Cyg Oct 7.79 10.9 HEL Oct 9.74 11.2 HEL Oct 10.81 11.5 DAH
SS Cyg Oct 11.80 11.9 HEL Oct 12.03 12.0 GRL Oct 20.84 12.1 DAH
SS Cyg Oct 29.93 12.1 GRL Oct 31.70 11.9 HEL Nov 5.10 12.1: GRL
SS Cyg Nov 7.10 11.9: GRL Oct 8.08 12.0 GRL Oct 8.71 12.1 GRL
RU Peg Oct 10.83 12.7 DAH Oct 10.89 12.6: GRL Oct 11.82 <12.5: HEL
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Dwarf novae in outburst were RX And (Oct 29, one obs.) and SS Cyg (Sep 30
to Oct 10, short maximum). Z Cam is currently in a standstill.
3. OTHER VARIABLES
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Variable 1992 UT Magn Obs 1992 UT Magn Obs 1992 UT Magn Obs
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EG And Oct 5.96 7.3 HLS Oct 25.95 7.4 HLS Oct 29.99 7.5 GRL
T Cep Oct 7.09 6.6 GRL Oct 30.00 6.2 GRL Nov 7.10 6.0 GRL
Omicr Cet Oct 6.56 5.0 GRL Oct 29.98 5.8 GRL Nov 7.98 6.0 GRL
R CrB Oct 10.79 6.0 DAH Oct 10.84 6.1 GRL Oct 26.75 6.1 HLS
R CrB Oct 31.73 6.0 GRL Nov 4.79 6.0 GRL Oct 8.79 6.1 GRL
U Ori Oct 30.11 6.6 GRL Nov 7.11 6.7 GRL
X Per Oct 7.11 6.6 GRL Oct 16.83 6.6 HLS Oct 25.94 6.6 HLS
X Per Oct 26.74 6.6 HLS Oct 29.99 6.6 GRL
AX Per Oct 10.89 12.2 GRL Oct 30.12 12.4 GRL Nov 7.11 12.3 GRL
FG Sge Oct 6.89 13.5: MOK Oct 10.82 12.5 DAH Oct 10.86 12.7 GRL
FG Sge Nov 4.73 13.5: MOK Nov 8.70 12.7: GRL
R Sct Oct 10.84 6.0 GRL Oct 26.74 7.0 HLS Nov 4.79 5.6 GRL
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The mira stars T Cep and U Ori are currently near maximum and visible in
binoculars. Mira itself is fading from a bright maximum in July. FG Sge is
the sentral star of the planetary PK 60-7.1. MOK has resolved FG Sge from
the mag. 13 companion, otherwise magnitudes are combined. According to
observations forwarded by Guy Hurst and Taichi Kato it has remained faint,
near mag. 14, since early October.
Bjorn H. Granslo
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