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 1454+41 TT BOO No. 525 0401+50 FO PER November 9, 1999 ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials NOV 06.0979 15.7: HSG NOV 09.1712 <13.1 BEB NOV 07.1186 <13.1 BEB NOV 09.2056 14.3 HSG NOV 07.790 <14.1 MUY ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials NOV 08.347 15.5 CCDV OCN NOV 09.2104 13.4 HSG NOV 09.0007 13.4 BRJ ---------------------------------------------------------------------------- 1454+41 TT BOOTIS The dwarf nova type (SU UMA subclass) cataclysmic variable TT BOO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials NOV 05.0681 <14.8 HSG NOV 07.75 12.3 GUN NOV 06.0681 <13.9 HSG NOV 08.9743 12.7 BRJ ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA HSG - G. HANSON II, USA BRJ - J. BORTLE, USA MUY - E. MUYLLAERT, BELGIUM GUN - J. GUNTHER, FRANCE 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! ____________________________________________________________________________