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: 0130+50 KT PER 0822+25 AT CNC No. 590 0640-16 HL CMA 1552+72 SS UMI March 13, 2000 0641+28 IR GEM 1947+58 V542 CYG ---------------------------------------------------------------------------- 0130+50 KT PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable KT PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 11.1201 <14.7 HSG MAR 12.807 12.7 OJR MAR 12.807 12.7 MUY MAR 12.82 12.4 VET ---------------------------------------------------------------------------- 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 MAR 11.1139 14.1: HSG MAR 12.834 12.4 OJR MAR 12.1458 13.5 KB MAR 13.1042 11.8 KB MAR 12.81 12.0 VET MAR 13.347 12.2 LMK MAR 12.821 12.0 MUY ---------------------------------------------------------------------------- 0641+28 IR GEMINORUM The dwarf nova type (SU UMA subclass) cataclysmic variable IR GEM appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 11.1181 <14.9 HSG MAR 13.2097 13.4 SXN MAR 12.828 <13.6 MUY ---------------------------------------------------------------------------- 0822+25 AT CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable AT CNC appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 10.4604 <14.2 SRX MAR 13.2222 13.1 SXN MAR 12.835 <14.0 MUY ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 04.4653 <15.8 HSG MAR 11.1125 14.0 HSG MAR 04.966 <14.2 MUY MAR 11.1944 13.9 HSG MAR 05.194 <14.5 PYG MAR 11.4771 14.0 HSG ---------------------------------------------------------------------------- 1947+58 V542 CYGNI The dwarf nova type (possible SS CYG subclass) cataclysmic variable V542 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 04.4840 <15.1 HSG MAR 11.5000 13.5 HSG MAR 05.185 <14.9 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: HSG - G. HANSON II, USA PYG - G. POYNER, ENGLAND KB - W. KAMINSKI, USA SRX - R. STUBBINGS, AUSTRALIA LMK - M. LINNOLT, USA SXN - M. SIMONSEN, USA MUY - E. MUYLLAERT, BELGIUM VET - M. VERDENET, FRANCE OJR - J. OSORIO, SPAIN 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! ____________________________________________________________________________