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 0640-16 HL CMA No. 583 0206+57A TZ PER 0709+08 AQ CMI February 29, 2000 0518+00 BI ORI 0725+06 SV CMI ---------------------------------------------------------------------------- 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 FEB 27.1076 <14.9 HSG FEB 29.0444 12.0 SXN FEB 27.804 <14.3 OJR FEB 29.1076 12.2 HSG FEB 28.790 13.5 MUY FEB 29.1757 12.1 HSG ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 25.8250 14.9 JCN FEB 28.7958 13.4 POX FEB 26.1153 14.2 HSG FEB 28.807 13.4 MUY FEB 26.78 14.2 VET FEB 28.824 14.0 PYG FEB 26.813 <14.0 MUY FEB 28.8389 14.2 JCN FEB 27.1181 14.0 HSG FEB 29.0596 13.1 BEB FEB 27.78 13.8 VET FEB 29.1014 13.1 SXN FEB 27.808 <14.1 OJR FEB 29.1194 13.4 HSG ---------------------------------------------------------------------------- 0518+00 BI ORIONIS The dwarf nova type cataclysmic variable BI ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 20.101 16.1 CCDV OCN FEB 29.1132 14.5 HSG FEB 25.1208 <15.1 HSG FEB 29.1632 <14.2 SXN FEB 26.1250 <15.1 HSG FEB 29.1764 14.7 HSG FEB 27.1132 <15.1 HSG ---------------------------------------------------------------------------- 0640-16 HL CANIS MAJORIS The dwarf nova type cataclysmic variable HL CMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 25.916 <14.1 PYG FEB 28.1772 <13.0 BEB FEB 26.1222 14.2: HSG FEB 28.1806 13.4 KB FEB 26.78 14.0 VET FEB 28.836 12.4 MUY FEB 26.826 <13.0 MUY FEB 29.0757 11.9 TSC FEB 26.829 <13.7 OJR FEB 29.0861 11.7 BVE FEB 27.1111 13.8 HSG FEB 29.1104 11.8 HSG FEB 27.1125 14.0 KB FEB 29.1306 12.0 KB FEB 27.79 13.5 VET FEB 29.1576 11.5 SXN FEB 27.827 <14.1 OJR ---------------------------------------------------------------------------- 0709+08 AQ CANIS MINORIS The dwarf nova type cataclysmic variable AQ CMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 25.920 <15.8 PYG FEB 28.868 14.6 PYG FEB 28.8653 14.8 JCN FEB 28.9313 14.7 JCN ---------------------------------------------------------------------------- 0725+06 SV CANIS MINORIS The dwarf nova type (Z CAM subclass) cataclysmic variable SV CMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 26.5972 <14.5 PEX FEB 28.838 13.7 MUY FEB 26.831 <13.8 MUY FEB 28.9313 13.1 POX FEB 28.5694 13.5 PEX FEB 29.2063 13.0 SXN ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA OJR - J. OSORIO, SPAIN BVE - E. VAN BALLEGOY, NETHERLANDS PEX - A. PEARCE, AUSTRALIA HSG - G. HANSON II, USA POX - M. POXON, ENGLAND JCN - C. JONES, ENGLAND PYG - G. POYNER, ENGLAND KB - W. KAMINSKI, USA SXN - M. SIMONSEN, USA MUY - E. MUYLLAERT, BELGIUM TSC - S. TRACY, USA OCN - S. O'CONNOR, CANADA VET - M. VERDENET, FRANCE 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! ____________________________________________________________________________