AAVSO NEWS FLASH No. 28
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
Tel. 617-354-0484 Fax 617-354-0665
INTERNET: aavso@aavso.org
* * * AAVSO NEWS FLASH * * *
Subject: SX LMi, CH Cyg, SS Aur, No. 28
AH Her, CY Lyr, TW Vir June 5, 1996
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SX LEONIS MINORIS
The dwarf nova type (SU UMa subclass) cataclysmic variable SX LMi is in
outburst as reported by T. Vanmunster in CVC 97. This outburst has since
been confirmed, as the following observations indicate:
AAVSO Observer
UT Mag. Initials
JUN 3.938 13.2 VMT
JUN 5.2236 13.1 BTH
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CH CYGNI
Reports of the significant fading of the Z And type cataclysmic variable
CH Cyg appear to be confirmed by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
MAY 3.4743 9.4 COL MAY 28.98 9.2 SCZ
MAY 21.85 9.6 FRF JUN 3.4722 9.7 COL
MAY 23.1 9.4 BRJ JUN 4.96 9.5 SCZ
MAY 24.800 9.7 FRF JUN 5.2132 9.9 BTH
MAY 26.321 9.4 OCN
Observers are reminded that the AAVSO sequence for CH Cyg was revised in
June 1995. An AAVSO chart for this star has been posted on our ftp site:
ftp.aavso.org in /pub/charts/ as tzcyg-b
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SS AURIGAE
The dwarf nova type (SS Cyg subclass) cataclysmic variable SS Aur is in
outburst as indicated by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
MAY 28.1632 <13.0 HSG JUN 5.019 11.55 CCDV ZRE
MAY 29.1569 <13.0 HSG JUN 5.1576 11.6: HSG
JUN 4.1528 12.2: HSG
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AH HERCULIS
The dwarf nova type (Z Cam subclass) cataclysmic variable AH Her is in
outburst as indicated by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
JUN 2.116 14.23 CCDV ZRE JUN 4.2361 12.0 BTH
JUN 2.3333 <13.6 SQN JUN 4.92 11.8 SCZ
JUN 3.121 12.92 CCDV ZRE JUN 4.963 11.6 DPA
JUN 3.151 12.86 CCDV ZRE JUN 5.086 11.85 CCDV ZRE
JUN 3.2306 12.6 BTH JUN 5.1764 12.0 HSG
JUN 3.258 12.73 CCDV ZRE JUN 5.2444 11.4 BTH
JUN 4.2125 12.0 HSG
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CY LYRAE
The dwarf nova type (SS Cyg subclass) cataclysmic variable CY Lyr appears to
be in outburst as indicated by the following observations:
AAVSO Observer
UT Mag. Initials
MAY 27.978 <14.2 DPA
JUN 4.0486 <14.4 BMM
JUN 5.0625 13.1 BMM
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TW VIRGINIS
The dwarf nova type (SS Cyg subclass) cataclysmic variable TW Vir is in
outburst as indicated by the following observations:
AAVSO Observer
UT Mag. Initials
MAY 24.2785 <13.4 SQN
JUN 4.1944 <13.4 HSG
JUN 5.1715 12.7 YRK
JUN 5.1938 12.6 HSG
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We thank the following contributors for the data that they have provided
for this News Flash:
BMM - M. Biesmans, Belgium OCN - S. O'Connor, Canada
BRJ - J. Bortle, USA SCZ - E. Schweitzer, France
BTH - T. Burrows, USA SQN - L. Shaw, USA
COL - P. Collins, USA VMT - T. Vanmunster, Belgium (via CVC 97)
DPA - A. Diepvens, Belgium YRK - D. York, USA
FRF - R. Fidrich, Hungary ZRE - R. Zissell, USA
HSG - G. Hanson, USA
Please monitor these stars closely and phone-in, fax, or e-mail your
observations to the AAVSO.
Good observing!
Rebecca Pellock, Technical Assistant
in the absence of
Janet A. Mattei, Director
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Symbols may include: < = fainter than magnitude given (variable not seen)
: = uncertain
CCDV = Charge-coupled device with (V) filter
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research purposes, please send your request to:
Janet Mattei, AAVSO Director, at aavso@aavso.org
We look forward to including your observations in future editions
of AAVSO NEWS FLASH!
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