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Date: Mon, 23 Nov 1992 22:34:59 +0100
From: granslo@argo.uio.no
Subject: VS observations by NAS.VSS (Report of 1992 Nov 23)
Norwegian Astronomical Society - Variable Star Section
VARIABLE STARS - REPORT OF 1992 NOVEMBER 23
Visual observations by members of NAS.VSS. Selected results since 1992 Nov 1.
Time system is U.T. Observers: GRL = B. H. Granslo (Fjellhamar); HLS =
L. T. Heen (Trondheim), MOK = O. Midtskogen (Tranby).
Only a few observations are available due to poor weather.
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 Nov 8.71 10.3 GRL Nov 14.75 10.4 GRL
N1992 Cyg Nov 4.73 9.3 MOK Nov 8.20 9.7 MOK Nov 11.080 9.6 GRL
N1992 Cyg Nov 14.69 9.4 MOK Nov 14.756 9.5 GRL Nov 15.76 9.6 MOK
N1992 Cyg Nov 15.788 9.6 GRL Nov 21.735 9.7 GRL
GK Per Nov 4.83 13.4 MOK Nov 8.22 13.4 MOK Nov 15.04 13.1 MOK
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The slow fade of Nova Cygni has continued. T CrB and GK Per were observed
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 Nov 15.79 13.0: GRL
DX And Nov 4.81 <14.4 MOK Nov 15.02 <13.8 MOK Nov 15.77 14.1 MOK
SS Aur Nov 15.80 11.9: GRL
Z Cam Nov 8.08 11.7 GRL Nov 15.79 11.6 GRL
SS Cyg Nov 14.76 12.1 GRL Nov 15.79 12.0 GRL Nov 21.74 12.1 GRL
EY Cyg Nov 4.72 14.2 MOK Nov 14.69 14.1 MOK Nov 15.76 14.1 MOK
RU Peg Nov 14.77 12.6 GRL Nov 15.79 12.6 GRL
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Dwarf novae in outburst were RX And (Nov 15, fading?) and SS Aur (Nov 15).
DX And, SS Cyg, EY Cyg and RU Peg were seen near minimum. Z Cam were seen
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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UV Cas Nov 5.10 10.8 GRL Nov 15.96 10.7 GRL
R CrB Nov 4.79 6.0 GRL Nov 8.79 6.1 GRL Nov 14.71 5.9 GRL
V482 Cyg Nov 15.80 11.0 GRL
X Per Nov 14.91 6.5 GRL Nov 17.96 6.5 HLS
AX Per Nov 7.11 12.3 GRL Nov 15.80 12.3 GRL
FG Sge Nov 4.73 14.3 MOK Nov 8.70 12.7: GRL Nov 14.77 12.5 GRL
FG Sge Nov 14.71 13.7 MOK Nov 15.76 13.7 MOK
RR Tau Nov 7.11 11.0 GRL Nov 15.81 11.1 GRL
SU Tau Nov 7.11 9.6 GRL
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FG Sge, the sentral star of the planetary PK 60-7.1, faded from mag. 9.5
in late august to approx. mag. 14. It has remained that faint since early
October. MOK has resolved it from the mag. 13 companion, otherwise magni-
tudes are combined. AX Per, the symbiotic variable, has been faint since
September.
In TA-Circular 684 (1992 Nov 15) astronomers from Ukraine have requested
observations of the following eruptive variables: UV Cas, R CrB, V482 Cyg,
DY Per, RR Tau and SU Tau. Results should be reported daily to Guy Hurst
until Dec 15.
Taichi Kato (Kyoto, Japan) has kindly forwarded email charts for FG Sge and
GRO 0422+32. These will be sent in a separate posting.
Bj|rn H. Granslo
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