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: 1317-41 V803 CEN 1730-47 BF ARA No. 337 1640+25 AH HER 1848+26 CY LYR August 31, 1998 Correction for News Flash No. 336 ---------------------------------------------------------------------------- 1317-41 V803 CENTAURI The dwarf nova type cataclysmic variable V803 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 28.4049 <14.2 SRX AUG 29.4333 12.9 SRX AUG 29.4174 12.9 SRX AUG 29.714 12.9 MLF ---------------------------------------------------------------------------- 1640+25 AH HERCULIS The dwarf nova type (Z CAM subclass) cataclysmic variable AH HER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 28.0667 13.6 BRJ AUG 29.89 12.0 KTO AUG 28.856 14.0 BOS AUG 30.3264 12.0 SQN AUG 28.859 13.7 PYG AUG 31.0756 11.7 BEB AUG 29.0903 13.8 BRJ AUG 31.0778 11.3 MKJ AUG 29.880 12.0 PYG ---------------------------------------------------------------------------- 1730-47 BF ARAE The dwarf nova type (SS CYG subclass) cataclysmic variable BF ARA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 28.4160 <14.8 SRX AUG 29.4139 14.0 SRX ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 28.031 <15.6 PYG AUG 29.874 13.0 PYG AUG 28.922 15.4 PYG AUG 29.90 12.9 KTO AUG 29.0986 13.5 BRJ AUG 30.0736 13.4 WEI AUG 29.85 13.0 GUN AUG 31.0903 13.2 MKJ ---------------------------------------------------------------------------- CORRECTION - News Flash No.336 "apparent supernova about 18 degrees west of the nucleus of NGC 6754" should read "apparent supernova about 18 seconds west of the nucleus of NGC 6754" ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA MLF - L. MONARD, SOUTH AFRICA BOS - E. BROENS, BELGIUM PYG - G. POYNER, ENGLAND BRJ - J. BORTLE, USA SQN - L. SHAW, USA GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA KTO - T. KINNUNEN, FINLAND WEI - D. WEIER, USA MKJ - J. MCKENNA, USA 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! ____________________________________________________________________________