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: 0217+70 AM CAS 1951+10 V725 AQL No. 655 1804+67 EX DRA 1953+77 AB DRA August 9, 2000 ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 05.963 15.5: RMQ AUG 09.022 14.3 MUY AUG 07.922 14.1 RMQ ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing 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 AUG 05.924 15.3 RMQ AUG 08.964 13.9 MUY AUG 06.1021 14.5 BRJ AUG 09.0708 14.4 CCDV ZRE AUG 07.912 15.0: RMQ AUG 09.1049 13.6 BRJ ---------------------------------------------------------------------------- 1951+10 V725 AQUILAE The dwarf nova type cataclysmic variable V725 AQL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 07.892 <14.8 RMQ AUG 08.923 14.4 PYG AUG 08.1639 14.0: SXN AUG 08.974 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 04.888 14.0 RMQ AUG 07.911 12.9 RMQ AUG 05.8979 14.7 JCN AUG 08.940 13.0 PYG AUG 05.923 13.9 RMQ AUG 08.963 12.9 MUY AUG 05.966 13.8 OJR AUG 09.1063 12.7 BRJ AUG 06.1028 14.6 BRJ AUG 09.1420 12.8 CCDV ZRE ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND JCN - C. JONES, ENGLAND RMQ - M. RESZELSKI, POLAND MUY - E. MUYLLAERT, BELGIUM SXN - M. SIMONSEN, USA OJR - J. OSORIO, SPAIN 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! 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! ____________________________________________________________________________