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: 0814+73 Z CAM 1925+42 V1504 CYG No. 1197 1920+52 V1113 CYG July 15, 2003 ---------------------------------------------------------------------------- 0814+73 Z CAMELOPARDALIS The dwarf nova type (Z CAM subclass prototype) cataclysmic variable Z CAM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 12.9380 13.3 PYG JUL 14.8819 10.9 GUN JUL 13.9330 13.0 PYG JUL 14.9097 11.4 CPS JUL 13.9410 12.9 CPS JUL 14.9350 10.9 PYG JUL 14.0854 13.1 CGF JUL 14.9368 10.8 POX ---------------------------------------------------------------------------- 1920+52 V1113 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V1113 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 09.0320 <15.5 PYG JUL 14.9440 14.1 PYG JUL 09.9510 <14.8 PYG JUL 15.0710 14.0 PYG JUL 11.2181 <15.1 TDB JUL 15.0720 14.0 PYG JUL 12.9490 <14.4 PYG JUL 15.2458 14.2 TDB JUL 13.9430 <14.8 PYG ---------------------------------------------------------------------------- 1925+42 V1504 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V1504 CYG may be in brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 10.0240 <15.5 PYG JUL 14.0200 <15.0 PYG JUL 10.9722 <14.3 GCO JUL 14.9470 15.4 PYG JUL 11.2125 <15.4 TDB JUL 15.2069 <14.7 TDB JUL 13.0240 <15.0 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. CHAPLE JR., USA POX - M. POXON, ENGLAND CPS - P. CLOESEN, BELGIUM PYG - G. POYNER, ENGLAND GCO - C. GUALDONI, ITALY TDB - D. TAYLOR, CANADA GUN - J. GUNTHER, FRANCE 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! HBS&A! ____________________________________________________________________________