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: 0243+37 PY PER 0804+28 YZ CNC No. 754 0524-03 V1159 ORI March 21, 2001 ---------------------------------------------------------------------------- 0243+37 PY PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable PY PER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 06.7799 16.24 CCD DRG MAR 13.8166 <14.8 RMQ MAR 12.1020 <13.9 SXN MAR 14.8048 <14.2 RMQ MAR 12.8339 <13.9 PYG MAR 21.0660 14.1 SXN ---------------------------------------------------------------------------- 0524-03 V1159 ORIONIS The dwarf nova type (SU UMA subclass) cataclysmic variable V1159 ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 15.4369 14.8 SRX MAR 19.0041 12.8 DPL MAR 15.4380 <14.0 NLX MAR 20.8785 12.8 RMQ MAR 15.8152 14.5 RMQ MAR 21.1000 12.8 SXN MAR 18.1381 12.8 SXN MAR 21.3368 12.8 LMK MAR 18.3333 12.5 LMK MAR 21.4950 13.0 SRX ---------------------------------------------------------------------------- 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 MAR 19.1910 <14.2 SXN MAR 21.1853 11.8 SXN MAR 20.3262 12.2 LMK MAR 21.2965 11.9 LMK MAR 20.8799 12.1 RMQ MAR 21.4780 12.1 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DPL - P. DOMBROWSKI, USA PYG - G. POYNER, ENGLAND DRG - R. DIETHELM, SWITZERLAND RMQ - M. RESZELSKI, POLAND LMK - M. LINNOLT, USA SRX - R. STUBBINGS, AUSTRALIA NLX - P. NELSON, AUSTRALIA SXN - M. SIMONSEN, 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! ____________________________________________________________________________