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Date: Mon, 30 Nov 1992 20:47:35 +0100
From: granslo@argo.uio.no
Subject: VS Observations by NAS.VSS (Report of 1992 Nov 30)
Norwegian Astronomical Society - Variable Star Section
VARIABLE STARS - REPORT OF 1992 NOVEMBER 30
Visual observations by members of NAS.VSS. Time system is U.T. Observers:
GRL = B. H. Granslo (Fjellhamar); HLS = L. T. Heen (Trondheim).
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 Nov 28.73 10.2 GRL
N1992 Cyg Nov 21.735 9.7 GRL Nov 28.756 9.7 GRL Nov 29.738 9.6 GRL
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Nova Cygni 1992 is fading slowly. T CrB was seen 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 Nov 28.78 <13.1 GRL
SS Aur Nov 15.80 11.9: GRL Nov 29.02 <13.2 GRL
SZ Cam Nov 15.79 12.0 GRL Nov 28.78 11.5 GRL Nov 29.81 11.6 GRL
SS Cyg Nov 21.74 12.1 GRL Nov 28.75 12.1 GRL Nov 29.74 12.1 GRL
EM Cyg Nov 21.78 12.7 GRL
RU Peg Nov 14.77 12.6 GRL Nov 15.79 12.6 GRL Nov 28.75 12.5 GRL
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Dwarf novae in outburst were RX And (Nov 15, fading?), SS Aur (Nov 15) and
EM Cyg (Nov 28). SS Cyg and RU Peg were seen near minimum. Z Cam are
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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UV Cas Nov 5.10 10.8 GRL Nov 15.96 10.7 GRL Nov 29.00 10.7 GRL
TAV Cas Okt 11.04 10.6 GRL Okt 29.99 10.7 GRL Nov 29.07 10.6 GRL
R CrB Nov 14.71 5.9 GRL Nov 22.70 6.0 HLS Nov 28.70 6.0 GRL
V482 Cyg Nov 15.80 11.0 GRL Nov 28.77 11.0 GRL
X Per Nov 17.96 6.5 HLS Nov 22.86 6.6 HLS Nov 28.80 6.4 GRL
AX Per Nov 15.80 12.3 GRL Nov 28.78 11.8 GRL
RR Tau Nov 15.81 11.1 GRL Nov 29.02 10.5 GRL Nov 29.81 10.7 GRL
SU Tau Nov 7.11 9.6 GRL Nov 29.03 9.6 GRL
NSV Tau Nov 22.85 5.4 HLS
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AX Per, the symbiotic variable, has apparently been in an eclipse since
1992 September. It has now brightened by about 0.5 magnitudes. TAV Cas is
TAV 0033+59, a possible eruptive variable discovered by M. Collins in 1990.
According to observations by Collins, M. Westlund, G. Hurst and G. Poyner
the star underwent a fade from mag. 10.5 to 12 in 1990 November (ref. TA
E-circulars 459, 469, 471, 495). NSV 1671 (49 Eri = HR 1469 = SAO 111928)
was seen unusually faint in early November (ref. TA E-Circular 686) and
observers were alerted in a message by H. Bengtsson. According to the above
observation by Mr. Heen it has returned to its normal brightness.
Bjorn H. Granslo
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