THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 25 Birch Street, Cambridge, MA 02138 USA Tel. 617-354-0484 Fax 617-354-0665 INTERNET: aavso@aavso.org * * * AAVSO NEWS FLASH * * * Subject: 1920-10 DH AQL 2023+43 V503 CYG No. 313 1953+77 AB DRA June 25, 1998 ---------------------------------------------------------------------------- 1920-10 DH AQUILAE The dwarf nova type (SU UMA subclass) cataclysmic variable DH AQL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 22.4007 <14.9 HSG JUN 23.4382 13.2 HSG JUN 23.3993 13.3 HSG JUN 25.3854 14.7 HSG ---------------------------------------------------------------------------- 1953+77 AB DRACONIS The dwarf nova type (Z CAM subclass) cataclysmic variable AB DRA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 20.9861 13.8 BMM JUN 22.3861 13.6 HSG JUN 21.985 14.1 PYG JUN 23.3826 13.1 HSG JUN 22.1 <14.0 CGF JUN 25.091 12.7 CGF JUN 22.1264 13.8 BRJ JUN 25.3667 13.1 HSG ---------------------------------------------------------------------------- 2023+43 V503 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V503 CYG may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 22.011 <15.0 PYG JUN 23.4104 <15.2 HSG JUN 22.4160 <15.2 HSG JUN 25.3917 14.4 HSG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BMM - M. BIESMANS, BELGIUM HSG - G. HANSON II, USA BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND CGF - G. CHAPLE JR., USA Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Elizabeth O. Waagen, Senior Technical Assistant on behalf of Janet A. Mattei, Director ____________________________________________________________________________ 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 sending a message to: observations@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 We look forward to including your observations in future editions of AAVSO NEWS FLASH! ____________________________________________________________________________