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: 0139+37 AR AND 1925+42 V1504 CYG No. 671 0748+63 HT CAM 1953+77 AB DRA September 14, 2000 1011+72 CI UMA ---------------------------------------------------------------------------- 0139+37 AR ANDROMEDAE The dwarf nova type cataclysmic variable AR AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 12.0729 <13.9 NHK SEP 13.861 12.0 RMQ SEP 12.880 12.7 MUY SEP 13.876 12.0 MUY ---------------------------------------------------------------------------- 0748+63 HT CAMELOPARDALIS The cataclysmic variable HT Cam appears to be in outburst, as indicated by the following observation: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 30.995 <13.8 RMQ SEP 14.069 13.7 KTO ---------------------------------------------------------------------------- 1011+72 CI URSAE MAJORIS The dwarf nova type cataclysmic variable CI UMA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 12.07 15.7: KTO SEP 14.07 13.9 KTO ---------------------------------------------------------------------------- 1925+42 V1504 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V1504 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 12.952 <15.0 PYG SEP 13.79 15.0 KTO SEP 13.2056 <14.3 SXN ---------------------------------------------------------------------------- 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 SEP 08.2080 14.5 CCDV ZRE SEP 12.8208 13.9 JCN SEP 10.8083 13.2 JCN SEP 12.823 13.4 MUY SEP 10.829 13.3 MUY SEP 12.923 13.4 PYG SEP 10.8500 13.2 JCN SEP 13.846 12.9 MUY SEP 10.857 13.6 RMQ SEP 14.0299 13.1 CGF SEP 11.810 13.4 MUY ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. CHAPLE JR., USA PYG - G. POYNER, ENGLAND JCN - C. JONES, ENGLAND RMQ - M. RESZELSKI, POLAND KTO - T. KINNUNEN, FINLAND SXN - M. SIMONSEN, USA MUY - E. MUYLLAERT, BELGIUM ZRE - R. ZISSELL, USA NHK - H. NYLANDER, FINLAND 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! ____________________________________________________________________________