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: 0524-03 V1159 ORI 0854-24 VZ PYX No. 603 0822+25 AT CNC 0945+12 X LEO April 7, 2000 ---------------------------------------------------------------------------- 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 APR 05.1236 14.5: HSG APR 07.0826 <13.6 SXN APR 05.4069 <14.6 SRX APR 07.253 13.5 LMK APR 06.4153 <14.0 SRX APR 07.4188 13.9 SRX ---------------------------------------------------------------------------- 0822+25 AT CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable AT CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 05.891 15.3 PYG APR 07.1438 13.1 SXN APR 06.4313 <14.2 SRX APR 07.4299 13.0 SRX APR 06.944 13.7 PYG ---------------------------------------------------------------------------- 0854-24 VZ PYXIDIS The dwarf nova type (SU UMA subclass) cataclysmic variable VZ PYX is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 06.4243 15.0 SRX APR 07.4368 12.6 SRX APR 07.333 12.8 LMK ---------------------------------------------------------------------------- 0945+12 X LEONIS The dwarf nova type cataclysmic variable X LEO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 06.4819 15.0 SRX APR 07.1507 12.5 SXN APR 06.5556 14.9 SRX APR 07.1844 13.2 BEB APR 06.897 <14.1 OJR APR 07.2465 13.0 ABB APR 06.955 14.6 PYG APR 07.4333 12.5 SRX APR 07.1131 13.3: BEB ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: ABB - B. ADAMS, USA OJR - J. OSORIO, SPAIN BEB - R. BERG, USA PYG - G. POYNER, ENGLAND HSG - G. HANSON II, USA SRX - R. STUBBINGS, AUSTRALIA LMK - M. LINNOLT, USA 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! ____________________________________________________________________________