THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 25 Birch Street, Cambridge, MA 02138 USA Tel. 617-354-0484 Fax 617-354-0665 INTERNET: aavso@aavso.org * * * AAVSO NEWS FLASH * * * Subject: YZ Cnc, AT Cnc, HL CMa, EX Dra, No. 245 AQ Eri, SX LMi, SU Tau January 7, 1997 ________________________________________________________________________________ YZ CANCRI The dwarf nova type (SU UMa subclass) cataclysmic variable YZ Cnc appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials JAN 06.044 14.2 PYG JAN 06.4618 14.4 HSG JAN 07.4361 11.8 HSG ----------------------------------------------------------------------------- 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 UT Mag. Initials AT CNC JAN 01.060 15.1 PYG AT CNC JAN 06.053 13.2 PYG ----------------------------------------------------------------------------- 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 JAN 05.4875 13.7 SRX JAN 06.4444 11.4 HSG JAN 05.6743 12.1 SRX JAN 07.4243 11.5 HSG JAN 06.033 12.0 PYG ----------------------------------------------------------------------------- EX DRACONIS The dwarf nova type cataclysmic variable EX Dra is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 31.757 15.0 PYG JAN 06.4875 13.0 HSG JAN 02.754 14.7 PYG JAN 06.808 13.2 PYG JAN 03.0833 <14.8 HSG ----------------------------------------------------------------------------- AQ ERIDANI The dwarf nova type (SU UMa subclass) cataclysmic variable AQ Eri may be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials JAN 03.2410 <15.3 HSG JAN 03.4743 <15.0 SRX JAN 05.4931 13.8 SRX ----------------------------------------------------------------------------- SX LEONIS MINORIS The dwarf nova type (SU UMa subclass) cataclysmic variable SX LMi is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 01.008 <15.5 PYG JAN 06.104 13.3 PYG JAN 05.997 13.3 PYG JAN 07.4625 13.2 HSG JAN 06.058 13.2 PYG ----------------------------------------------------------------------------- SU TAURI The R CrB type variable SU Tau appears to be fading, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 31.991 13.6 PYG JAN 03.2451 14.0 HSG JAN 02.083 13.7 PYG JAN 06.021 14.3 PYG JAN 02.2181 13.7 KMA JAN 06.4569 14.4 HSG JAN 02.2382 13.9 HSG JAN 06.857 14.6: PYG JAN 02.336 13.7 MRV JAN 07.4264 14.8 HSG ----------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: HSG - G. Hanson, USA KMA - M. A. Komorus, Canada MRV - R. Modic, USA PYG - G. Poyner, England SRX - R. Stubbings, Australia Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Rebecca Pellock, Technical Assistant on behalf of Janet A. Mattei, Director ________________________________________________________________________________ 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 sending a message to: observations@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 We look forward to including your observations in future editions of AAVSO NEWS FLASH! _______________________________________________________________________________