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: 0206+57A TZ PER 1911-00 FO AQL No. 649 1830+24A CH HER 2025-56 TT IND July 24, 2000 ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER appears to be going into outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 19.051 14.1 PYG JUL 22.0384 13.52 CCD DRG JUL 21.004 14.0: MUY JUL 22.047 13.7 PYG JUL 21.0089 13.88 CCD DRG JUL 23.1528 13.4 BRJ JUL 21.054 14.2 PYG JUL 24.003 13.5 RMQ ---------------------------------------------------------------------------- 1830+24A CH HERCULIS The dwarf nova type cataclysmic variable CH HER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 21.1854 <16.0 HSG JUL 21.951 15.6 PYG JUL 21.88 15.5: VET ---------------------------------------------------------------------------- 1911-00 FO AQUILAE The dwarf nova type (SS CYG subclass) cataclysmic variable FO AQL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 21.978 <15.2 PYG JUL 23.916 14.2 RMQ JUL 23.254 14.6 CCDV OCN JUL 24.255 13.9 CCDV OCN JUL 23.451 14.0 SRX JUL 24.560 13.9 SRX ---------------------------------------------------------------------------- 2025-56 TT INDI The dwarf nova type (Z CAM subclass) cataclysmic variable TT IND appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 22.635 <14.4 SRX JUL 24.541 12.7 SRX JUL 23.420 13.8 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND DRG - R. DIETHELM, SWITZERLAND RMQ - M. RESZELSKI, POLAND HSG - G. HANSON II, USA SRX - R. STUBBINGS, AUSTRALIA MUY - E. MUYLLAERT, BELGIUM VET - M. VERDENET, FRANCE OCN - S. O'CONNOR, CANADA 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! ____________________________________________________________________________