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 0822+25 AT CNC No. 516 0401+50 FO PER 0945+12 X LEO October 21, 1999 ---------------------------------------------------------------------------- 0006-12 WW CETI The dwarf nova type (possible Z CAM subclass) cataclysmic variable WW CET appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 15.2465 <13.6 SXN OCT 19.4167 13.4 SRX OCT 18.4431 13.5 SRX OCT 21.1833 12.3 SXN ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 19.2530 16.84 CCDV ZRE OCT 21.3063 12.5 SXN OCT 20.1986 13.7 HSG ---------------------------------------------------------------------------- 0822+25 AT CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable AT CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 16.163 <14.0 MUY OCT 21.4200 12.9 DGP OCT 19.168 13.8: MUY ---------------------------------------------------------------------------- 0945+12 X LEONIS The dwarf nova type cataclysmic variable X LEO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 19.169 12.5 MUY OCT 21.4200 13.2 DGP ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DGP - G. DYCK, USA SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA SXN - M. SIMONSEN, USA MUY - E. MUYLLAERT, BELGIUM 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! ____________________________________________________________________________