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: 0641+28 IR GEM 2023+43 V503 CYG No. 665 1804+67 EX DRA 2043+41 V516 CYG August 29, 2000 1937+21 FY VUL ---------------------------------------------------------------------------- 0641+28 IR GEMINORUM The dwarf nova type (SU UMA subclass) cataclysmic variable IR GEM may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 28.13 13.1 VET AUG 29.08 12.5 VET ---------------------------------------------------------------------------- 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 AUG 24.997 15.5 PYG AUG 26.951 15.1 RMQ AUG 25.0813 16.1 CCDV ZRE AUG 28.844 <14.5 MUY AUG 25.941 15.0: RMQ AUG 28.919 14.4 PYG AUG 26.934 14.9 PYG ---------------------------------------------------------------------------- 1937+21 FY VULPECULAE The dwarf nova type (Z CAM subclass) cataclysmic variable FY VUL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 26.863 14.3 MUY AUG 27.865 14.3 MUY AUG 26.887 14.3 RMQ AUG 28.867 13.9 MUY AUG 26.965 14.2 PYG AUG 28.979 13.6 PYG ---------------------------------------------------------------------------- 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 AUG 26.923 <15.0 RMQ AUG 28.882 14.1 MUY AUG 26.960 <15.0 PYG AUG 28.974 14.3 PYG AUG 27.8667 <14.2 DPV AUG 29.033 13.4 MGH AUG 27.876 <14.2 MUY AUG 29.06 14.2 DGP ---------------------------------------------------------------------------- 2043+41 V516 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V516 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 26.887 16.75 CCDV FMQ AUG 28.883 14.1 MUY AUG 26.924 <15.0 RMQ AUG 28.972 14.2 PYG AUG 26.958 <15.2 PYG AUG 29.06 14.2 DGP AUG 27.876 <14.2 MUY AUG 29.0805 14.2 CGF ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. CHAPLE JR., USA MUY - E. MUYLLAERT, BELGIUM DGP - G. DYCK, USA PYG - G. POYNER, ENGLAND DPV - P. DUBOVSKY, SLOVAKIA RMQ - M. RESZELSKI, POLAND FMQ - M. FIASCHI, ITALY VET - M. VERDENET, FRANCE MGH - H. MCGEE, ENGLAND 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, 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! ____________________________________________________________________________