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: 0058+40 RX AND 1937+21 FY VUL No. 462 1803+05 V426 OPH 1944+36A V811 CYG July 7, 1999 ---------------------------------------------------------------------------- 0058+40 RX ANDROMEDAE The dwarf nova type (Z CAM subclass) cataclysmic variable RX AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 30.2868 13.8 MDP JUL 03.940 10.9 MUY JUN 30.360 13.1 MRV JUL 03.9960 10.7 SJZ JUL 01.2736 13.0 MDP JUL 04.9630 11.1 SJZ JUL 01.347 12.8 MRV JUL 05.002 11.5 PYG JUL 01.97 11.9 GUN JUL 05.08 11.2 SPK JUL 02.949 11.2 MUY JUL 05.9510 11.1 SJZ JUL 02.9990 10.8 SJZ JUL 06.374 11.2 MRV JUL 03.084 10.9 SPK JUL 06.965 11.5 MUY JUL 03.187 11.0 LMO JUL 07.2160 11.9 MDP JUL 03.350 11.0 MRV ---------------------------------------------------------------------------- 1803+05 V426 OPHIUCHI The dwarf nova type cataclysmic variable V426 OPH is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 29.920 12.7 MUY JUL 05.943 11.2 MUY JUL 02.929 12.6 MUY JUL 06.924 11.3 MUY JUL 03.921 12.4: MUY JUL 07.307 11.2 OCN ---------------------------------------------------------------------------- 1937+21 FY VULPECULAE The dwarf nova type (Z CAM subclass) cataclysmic variable FY VUL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 24.983 14.5 MUY JUL 05.964 14.0 MUY JUL 02.944 <14.1 MUY JUL 06.955 13.9 MUY JUL 05.024 13.9 PYG ---------------------------------------------------------------------------- 1944+36A V811 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V811 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 02.937 <14.3 MUY JUL 06.2736 14.0 BTH JUL 05.2750 14.2 BTH JUL 06.949 13.9 MUY JUL 05.959 13.9 MUY ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BTH - T. BURROWS, USA MUY - E. MUYLLAERT, BELGIUM GUN - J. GUNTHER, FRANCE OCN - S. O'CONNOR, CANADA LMO - M. LESSARD, CANADA PYG - G. POYNER, ENGLAND MDP - P. MCDONALD, CANADA SJZ - J. SPEIL, POLAND MRV - R. MODIC, USA SPK - P. SCHMEER, GERMANY 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! ____________________________________________________________________________