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: 1317-41 V803 CEN 1848+26 CY LYR No. 455 1552+72 SS UMI 2023+43 V503 CYG June 21, 1999 1804+67 EX DRA ---------------------------------------------------------------------------- 1317-41 V803 CENTAURI The cataclysmic variable V803 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 17.5236 15.2 SRX JUN 19.5965 12.8 SRX JUN 19.5750 12.8 SRX JUN 19.718 12.9 MLF ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 14.990 <15.3 PYG JUN 18.014 14.1 PYG JUN 15.953 <14.2 MUY JUN 18.945 14.4 MUY JUN 16.018 <15.0 PYG JUN 18.981 14.5 PYG JUN 16.992 14.0 PYG ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing dwarf nova type cataclysmic variable EX DRA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 18.951 <14.5 MUY JUN 19.2854 14.8 CCDV ZRE JUN 18.983 15.5 PYG JUN 21.1236 12.8 CGF JUN 19.1 <14.5 CGF ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 17.008 <15.1 PYG JUN 18.997 13.8 PYG JUN 18.054 <14.9 PYG JUN 19.10 13.8 DGP JUN 18.9 13.9 GUN JUN 19.2451 13.4 BTH JUN 18.969 13.4 MUY JUN 21.1174 12.8 CGF ---------------------------------------------------------------------------- 2023+43 V503 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V503 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 15.029 <15.0 PYG JUN 18.067 <14.6 PYG JUN 16.007 <14.2 MUY JUN 19.016 14.4 MUY JUN 17.042 <14.6 PYG JUN 19.022 14.3 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BTH - T. BURROWS, USA MUY - E. MUYLLAERT, BELGIUM CGF - G. CHAPLE JR., USA PYG - G. POYNER, ENGLAND DGP - G. DYCK, USA SRX - R. STUBBINGS, AUSTRALIA GUN - J. GUNTHER, FRANCE ZRE - R. ZISSELL, USA MLF - L. MONARD, SOUTH AFRICA Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Rebecca Pellock, 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 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! ____________________________________________________________________________