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: AM Cas, SS Cyg, EX Dra No. 295 May 6, 1998 ____________________________________________________________________________ AM CASSIOPEIAE The dwarf nova type (Z Cam subclass) cataclysmic variable AM Cas appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials MAY 03.4708 15.1: HSG MAY 05.4493 13.0 HSG ---------------------------------------------------------------------------- SS CYGNI The dwarf nova type (SS Cyg subclass prototype) cataclysmic SS Cyg appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 03.4486 11.7 HSG MAY 04.933 11.8 DPA MAY 04.05 11.4 GRL MAY 05.3053 11.5 BEB MAY 04.077 11.6 PYG MAY 05.4257 11.0 HSG ---------------------------------------------------------------------------- EX DRACONIS The dwarf nova type cataclysmic variable EX Dra appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials MAY 05.4021 <15.3 HSG MAY 05.4167 14.4 HSG MAY 05.4375 13.7 HSG ----------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. Berg, USA DPA - A. Diepvens, Belgium GRL - B. Granslo, Norway HSG - G. Hanson, USA PYG - G. Poyner, England 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 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! ___________________________________________________________________________