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: 1220-45 V373 CEN 1953+77 AB DRA No. 491 1927+33 V792 CYG 2037+25 TY VUL September 2, 1999 1944+36A V811 CYG ---------------------------------------------------------------------------- 1220-45 V373 CENTAURI The dwarf nova type cataclysmic variable V373 CEN appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 30.3826 14.6 SRX SEP 02.3903 13.6 SRX ---------------------------------------------------------------------------- 1927+33 V792 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V792 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 23.313 <16.5 OCN SEP 02.310 14.8 OCN SEP 01.81 14.2 KTO ---------------------------------------------------------------------------- 1944+36A 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 AUG 30.318 15.6 OCN SEP 01.312 15.2 OCN AUG 30.888 <14.3 MUY SEP 01.81 15.0 KTO AUG 31.883 <14.3 MUY ---------------------------------------------------------------------------- 1953+77 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 AUG 27.946 14.6 PYG SEP 01.84 12.5 KTO AUG 30.851 <14.0 MUY SEP 02.1272 12.8 BEB AUG 31.849 14.2 MUY ---------------------------------------------------------------------------- 2037+25 TY VULPECULAE The dwarf nova type cataclysmic variable TY VUL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 27.964 <14.7 PYG SEP 01.9192 14.6 SPK ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA PYG - G. POYNER, ENGLAND KTO - T. KINNUNEN, FINLAND SPK - P. SCHMEER, GERMANY MUY - E. MUYLLAERT, BELGIUM SRX - R. STUBBINGS, AUSTRALIA OCN - S. O'CONNOR, CANADA 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! ____________________________________________________________________________