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: 1934+30 EM CYG 2023+43 V503 CYG No. 1181 1937+21 FY VUL June 20, 2003 ---------------------------------------------------------------------------- 1934+30 EM CYGNI The dwarf nova type (Z CAM subclass) cataclysmic variable EM CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 12.4333 13.8 LMK JUN 16.0611 12.3 SUI JUN 13.0542 13.7: SUI JUN 18.0153 12.6 GCO JUN 13.0590 13.0 PYG JUN 18.9847 12.6 GCO JUN 14.4792 13.4 LMK JUN 19.9259 12.7 OJR JUN 15.2188 13.2 TDB JUN 19.9819 12.7 GCO ---------------------------------------------------------------------------- 1937+21 FY VULPECULAE The dwarf nova type (Z CAM subclass) cataclysmic variable FY VUL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 19.0174 <14.1 GCO JUN 20.0097 14.2 GCO JUN 19.4153 14.3 LMK JUN 20.4222 13.9 LMK ---------------------------------------------------------------------------- 2023+43 V503 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V503 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 14.4694 <14.3 LMK JUN 20.4472 13.8 LMK JUN 15.2583 <14.2 TDB ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: GCO - C. GUALDONI, ITALY PYG - G. POYNER, ENGLAND LMK - M. LINNOLT, USA SUI - R. SMITH, ENGLAND OJR - J. OSORIO, SPAIN TDB - D. TAYLOR, 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! ____________________________________________________________________________