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: 0641+28 IR GEM 0905+51 DI UMA No. 568 0804+28 YZ CNC 0945+12 X LEO February 3, 2000 0822+25 AT CNC 1848+26 CY LYR ---------------------------------------------------------------------------- 0641+28 IR GEMINORUM The dwarf nova type (SU UMA subclass) cataclysmic variable IR GEM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 02.1167 14.0 HSG FEB 03.1083 12.3 HSG FEB 02.4875 14.0: SRX FEB 03.1910 11.95 CCDV ZRE FEB 02.832 14.2: MUY ---------------------------------------------------------------------------- 0804+28 YZ CANCRI The dwarf nova type (SU UMA subclass) cataclysmic variable YZ CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 30.0680 15.51 CCDV ZRE FEB 03.0236 11.3 DPL FEB 01.5181 14.6 SRX FEB 03.2080 12.23 CCDV ZRE FEB 02.2424 14.2 HSG FEB 03.2410 12.1 HSG FEB 02.4701 13.0 SRX FEB 03.5444 11.9 SRX FEB 02.837 12.4 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 JAN 31.5139 14.2 SRX FEB 02.4993 13.4 SRX FEB 01.5139 13.7 SRX FEB 02.838 13.3 MUY ---------------------------------------------------------------------------- 0905+51 DI URSAE MAJORIS The dwarf nova type cataclysmic variable DI UMA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 02.2479 15.6 HSG FEB 03.2542 15.8: HSG ---------------------------------------------------------------------------- 0945+12 X LEONIS The dwarf nova type cataclysmic variable X LEO appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 03.2597 15.1 HSG FEB 03.5556 13.5 SRX ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 03.17 12.9 GUN FEB 03.233 13.1 MUY ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DPL - P. DOMBROWSKI, USA MUY - E. MUYLLAERT, BELGIUM GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA 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! 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! ____________________________________________________________________________