THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 25 Birch Street, Cambridge, MA 02138 USA Tel. 617-354-0484 Fax 617-354-0665 http://www.aavso.org * * * AAVSO NEWS FLASH * * * Subject: 0006-12 WW CET No. 675 1925+42 V1504 CYG September 22, 2000 2043+41 V516 CYG ---------------------------------------------------------------------------- 0006-12 WW CETI The dwarf nova type (possible Z CAM subclass) cataclysmic variable WW CET is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 20.436 13.6 SRX SEP 21.791 11.4 PEX SEP 20.908 13.7 MUY SEP 21.946 11.3 RMQ SEP 21.456 12.0 SRX SEP 21.953 11.2 MUY SEP 21.501 12.0 SRX SEP 22.2646 10.9 SXN ---------------------------------------------------------------------------- 1925+42 V1504 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V1504 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 20.1632 17.5 CCDV OCN SEP 21.883 <14.5 MUY SEP 20.817 <14.5 MUY SEP 21.885 15.4 RMQ SEP 20.892 <15.3 PYG SEP 22.2090 14.7 SXN ---------------------------------------------------------------------------- 2043+41 V516 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V516 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 18.967 <15.0 PYG SEP 21.912 14.0 MUY SEP 19.1583 <14.2 SXN SEP 22.0229 13.8 CGF SEP 20.847 14.1 MUY SEP 22.0424 14.1 BRJ SEP 20.890 14.4 PYG SEP 22.2060 13.91 CCDV ZRE SEP 21.0597 14.0 CGF SEP 22.2181 14.1 SXN SEP 21.892 13.9 RMQ ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND CGF - G. CHAPLE JR., USA RMQ - M. RESZELSKI, POLAND MUY - E. MUYLLAERT, BELGIUM SRX - R. STUBBINGS, AUSTRALIA OCN - S. O'CONNOR, CANADA SXN - M. SIMONSEN, USA PEX - A. PEARCE, AUSTRALIA ZRE - R. ZISSELL, USA Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Janet A. Mattei, Director Rebecca Pellock, Technical Assistant ____________________________________________________________________________ Symbols may include: < = fainter than magnitude given (variable not seen) : = uncertain CCDV = Charge-coupled device with (V) filter If you would like to contribute to AAVSO NEWS FLASH, please send observations of unusual variable star activity to: observations@aavso.org Those who wish to subscribe (free of charge) or unsubscribe to NEWS FLASH may do so by visiting the following web page: http://www.aavso.org If you would like data from the AAVSO International Database for research purposes, please send your request to: Janet Mattei, AAVSO Director, at aavso@aavso.org An archive of past issues of the News Flash is available at the following web page: http://www.aavso.org/newsflash/ We look forward to including your observations in future editions of AAVSO NEWS FLASH! ____________________________________________________________________________