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: FO Aql, SS Aur, V811 Cyg, AB Dra, No. 294 EX Dra, WX Hyi, UZ Ser May 4, 1998 ____________________________________________________________________________ FO AQUILAE The dwarf nova type (SS Cyg subclass) cataclysmic variable FO Aql is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 29.3360 15.79 CCDV ZRE MAY 02.4215 14.5 HSG MAY 01.6243 14.8 SRX MAY 02.6250 13.9 SRX MAY 01.6681 14.7 SRX MAY 03.4563 13.9 HSG ----------------------------------------------------------------------------- SS AURIGAE The dwarf nova type (SS Cyg subclass) cataclysmic variable SS Aur is in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials APR 30.0400 14.77 CCDV ZRE MAY 03.0403 12.8 CGF MAY 3.867 12.0 PYG ----------------------------------------------------------------------------- V811 CYGNI The dwarf nova type (SS Cyg subclass) cataclysmic variable V811 Cyg appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 27.4181 <14.8 HSG MAY 03.3632 14.7 HSG MAY 02.4125 14.0 HSG MAY 03.4451 14.9 HSG ----------------------------------------------------------------------------- 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 MAY 01.3450 14.3 CCDV ZRE MAY 03.0424 12.7 CGF MAY 02.3972 13.2 HSG MAY 03.3451 12.6 HSG MAY 02.4285 13.1 HSG MAY 03.997 13.0 PYG ----------------------------------------------------------------------------- EX DRACONIS The dwarf nova type cataclysmic variable EX Dra is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 29.2299 15.2 CCDV ZRE MAY 03.3465 13.2 HSG MAY 01.2854 14.7 CCDV ZRE MAY 03.4458 13.1 HSG MAY 02.3986 14.0 HSG MAY 03.998 13.1 PYG MAY 02.4174 14.0 HSG ----------------------------------------------------------------------------- WX HYDRI The dwarf nova type (SU UMa subclass) cataclysmic variable WX Hyi is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 28.6757 14.0 SRX MAY 03.3799 12.9 SRX MAY 02.3896 <13.7 SRX MAY 04.3778 13.4 SRX ----------------------------------------------------------------------------- UZ SERPENTIS The dwarf nova type (possible Z Cam subclass) cataclysmic variable UZ Ser is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 02.4208 <14.8 HSG MAY 03.4549 13.9 HSG MAY 02.6028 <14.8 SRX MAY 04.4389 13.4 SRX ----------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. Chaple, USA HSG - G. Hanson, USA PYG - G. Poyner, England SRX - R. Stubbings, Australia ZRE - R. Zissell, USA 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 ____________________________________________________________________________ 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! ___________________________________________________________________________