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Date: Mon, 6 Dec 1993 22:50:44 +0200
From: granslo@argo.uio.no
Subject: NAS.VSS Report of 1993 Dec 6
Norwegian Astronomical Society - Variable Star Section
***** VARIABLE STARS - REPORT OF 1993 DECEMBER 6 *****
This report contains selected visual observations by members of NAS.VSS
since 1993 November 1. Time system is U.T. Contributing observers:
Abbr. Observer Address Instruments
DAH Dahle, Haakon Oslo, Norway C203
GRL Granslo, Bjorn H. Fjellhamar, Norway C203, L60, B7x35
LAU Lauvstad, Andreas Levanger, Norway M152, B7x50, L6x30
1. NOVAE AND RECURRENT NOVAE
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Variable 1993 UT Magn Obs 1993 UT Magn Obs 1993 UT Magn Obs
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T CrB Nov 27.67 10.3: GRL Dec 5.67 10.5 GRL
V1974 Cyg Dec 5.723 12.8 GRL
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The recurrent nova T Coronae Borealis (NR) was seen near minimum.
V1974 Cygni (Nova 1992) is fading slowly.
2. DWARF NOVAE
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Variable 1993 UT Magn Obs 1993 UT Magn Obs 1993 UT Magn Obs
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RX And Nov 6.85 <12.7 LAU Nov 7.78 <12.7 LAU Nov 13.02 13.9 DAH
RX And Nov 14.00 <12.7 LAU Nov 19.79 <12.7 LAU Nov 20.73 <12.7 LAU
RX And Nov 21.74 <12.5 LAU Dec 5.02 11.2 GRL Dec 5.74 11.2 GRL
DX And Nov 8.82 <13.0 LAU Nov 19.80 <12.5 LAU Nov 20.74 <13.0 LAU
DX And Nov 21.74 <12.5 LAU Dec 5.74 <12.5 GRL
SS Aur Nov 13.00 <13.0 GRL Nov 13.03 <13.8 DAH Dec 5.02 <13.0 GRL
Z Cam Nov 13.00 11.6 GRL Nov 20.80 11.6 LAU Dec 5.01 11.6 GRL
SY Cnc Nov 13.04 11.8 GRL Dec 6.03 11.7 GRL
SS Cyg Nov 3.75 11.5 LAU Nov 4.73 11.6: LAU Nov 5.73 11.6 LAU
SS Cyg Nov 6.72 12.0 LAU Nov 7.74 12.0 LAU Nov 8.74 11.5 LAU
SS Cyg Nov 12.99 11.9 GRL Nov 13.02 11.7 DAH Nov 15.72 12.0 LAU
SS Cyg Nov 19.71 12.0 LAU Nov 20.73 12.0 LAU Nov 21.73 12.0 LAU
SS Cyg Nov 27.68 11.9: GRL Dec 5.01 12.0 GRL Dec 5.73 12.0 GRL
U Gem Nov 13.00 <12.6 GRL Dec 5.01 <12.6 GRL
RU Peg Nov 20.76 <12.5 LAU Dec 5.73 12.6 GRL
CZ Ori Nov 13.03 12.6 DAH Dec 5.09 <12.9 GRL Dec 6.03 <12.9 GRL
CN Ori Dec 5.09 12.2 GRL Dec 6.03 12.3 GRL
TZ Per Nov 13.02 13.3 DAH
UV Per Nov 13.02 <14.1 DAH
SU UMa Nov 13.01 11.9 GRL Dec 5.09 <13.2 GRL
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The following dwarf novae have been detected in outburst: RX Andromedae
(Dec 5 - 6), SY Cancri (Nov 13, Dec 6), CN Orionis (Dec 5 - 6), CZ Orionis
(Nov 13) and SU Ursae Majoris (Nov 13). Z Camelopardalis and TZ Persei were
detected at standstill.
3. OTHER VARIABLES
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Variable 1993 UT Magn Obs 1993 UT Magn Obs 1993 UT Magn Obs
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Z And Nov 19.81 10.5 LAU Nov 20.75 10.3 LAU Nov 21.75 10.7 LAU
Z And Nov 27.68 10.7 GRL Dec 5.03 10.7 GRL
EG And Nov 6.86 7.6: LAU Nov 8.89 7.5 LAU Nov 14.02 7.9: LAU
EG And Nov 19.72 7.5 LAU Nov 27.88 7.6 GRL Dec 4.79 7.5 GRL
TT Ari Nov 12.99 10.6 GRL Dec 5.04 10.5 GRL
RW Aur Nov 27.88 10.7 GRL Dec 5.07 10.6 GRL Dec 6.00 10.5 GRL
AB Aur Nov 27.88 6.8 GRL Dec 5.08 6.8 GRL
UV Cas Nov 20.85 11.1 LAU Dec 5.03 10.8 GRL
R CrB Nov 15.751 8.1 GRL Nov 27.666 7.2 GRL Dec 4.741 7.0 GRL
R CrB Dec 5.67 6.9 GRL
CH Cyg Nov 27.68 7.8 GRL Dec 4.76 7.9 GRL
AG Dra Nov 27.67 9.9 GRL Dec 4.77 9.8 GRL
FU Ori Nov 13.04 9.5 GRL Dec 5.06 9.5 GRL
AG Peg Nov 27.68 8.7 GRL Dec 4.76 8.6 GRL
V Sge Nov 15.74 12.1 LAU Dec 5.72 12.0 GRL
FG Sge Nov 6.75 11.3: LAU Nov 7.76 11.3 LAU Nov 15.73 11.3 LAU
FG Sge Nov 19.74 11.1 LAU Dec 5.72 11.1 GRL
T Tau Nov 5.89 10.5 LAU Nov 8.85 10.4 LAU Nov 19.90 10.5 LAU
T Tau Nov 27.88 9.9 GRL Dec 5.06 9.9 GRL
RR Tau Nov 27.89 11.0 GRL Dec 5.07 11.2 GRL Dec 6.00 11.2 GRL
RY Tau Nov 13.05 10.7 GRL Nov 27.89 11.1: GRL Dec 5.06 10.9 GRL
SU Tau Nov 13.04 <12.5 GRL Nov 19.95 <12.8 LAU Dec 5.06 <13.0 GRL
BU Tau Nov 5.85 5.5 LAU Nov 7.78 5.3 LAU Nov 17.76 5.3 LAU
BU Tau Nov 19.79 5.3 LAU Nov 27.71 5.1 GRL Dec 4.93 5.3 GRL
CQ Tau Nov 27.89 11.2 GRL Dec 5.07 11.0 GRL Dec 6.00 10.9 GRL
WW Vul Nov 27.68 10.8 GRL Dec 5.72 10.8 GRL
PU Vul Nov 17.74 11.9 LAU Dec 5.72 11.5 GRL
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R Coronae Borealis (RCB) has brightened by more than a magnitude since mid-
November and the other RCB star SU Tauri is still wery faint. The nova-like
variable V Sagittae has remained faint for several months. FG Sagittae, the
central star of the planetary nebula PK 60-7.1, has brighted slowly from
its deep minimum last autumn. All observations of this star are combined
with its mag. 13 companion.
[For most observers the weather was very unfavourable in November. They
were nearly completely clouded out and only a few observations were made.
However, the observer A. Lauvstad, observing from latitude 64 degrees
north, has experienced nice weather with many clear nights.]
Kind regards,
Bjorn H. Granslo
Director, NAS.VSS
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