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: 0058+40 RX AND 0854-24 VZ PYX No. 1140 0401+50 FO PER 0855+18 SY CNC April 7, 2003 0524-03 V1159 ORI 0939+52 ER UMA 0804+28 YZ CNC 0945+34 RZ LMI 1910-26 V729 SGR ---------------------------------------------------------------------------- 0058+40 RX ANDROMEDAE The dwarf nova type (Z CAM subclass) cataclysmic variable RX AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 13.8264 14.2 VJA MAR 23.8021 10.5 GUN MAR 14.8090 14.0 PYG MAR 31.8424 14.3 VJA MAR 21.7870 10.4 SJZ APR 03.8278 11.0 VJA MAR 21.8110 10.2 KIS APR 05.8368 10.7 VJA MAR 22.7830 10.8 SJZ APR 06.8326 11.5 VJA MAR 23.2389 10.6 LMK ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 03.1987 16.34 CCDV SFK APR 06.2597 13.7 LMK APR 05.8347 13.7 OJR APR 06.8660 13.9 OJR ---------------------------------------------------------------------------- 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 04.4170 14.8 SRX APR 06.0819 13.2 CMP APR 05.0708 <13.6 CMP APR 06.2431 12.7: LMK APR 05.1361 <13.6 DLA APR 06.4060 13.7 SRX APR 05.4100 13.8 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 APR 04.2882 14.4 LMK APR 06.1479 11.9 YSD APR 04.4330 14.2 SRX APR 06.2528 11.8 LMK APR 04.4806 <12.8 MTH APR 06.4080 12.1 SRX APR 04.8312 12.6 GUN APR 06.8333 12.1 POX APR 04.8438 13.2 GCO APR 06.8472 12.2 GCO APR 05.1715 11.9 DLA APR 06.8638 12.3 OCR APR 05.4170 11.9 SRX APR 06.8708 12.1 OJR APR 05.8396 11.9 OJR APR 06.9160 11.7 CPS APR 05.8590 11.7 PYG APR 07.0632 12.7 CGF APR 05.8590 11.7 GCO APR 07.1190 12.72 CCDV ZRE ---------------------------------------------------------------------------- 0854-24 VZ PYXIDIS The dwarf nova type (SU UMA subclass) cataclysmic variable VZ PYX is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 04.2965 <14.5 LMK APR 06.3139 14.0 LMK APR 04.4090 <14.4 SRX APR 06.4030 14.0 SRX APR 05.4030 12.8 SRX ---------------------------------------------------------------------------- 0855+18 SY CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable SY CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 05.4290 13.4 SRX APR 06.4190 13.0 SRX APR 05.8424 12.9 OJR APR 06.8410 12.6 POX APR 05.8620 12.0 PYG APR 06.8611 12.7 GCO APR 06.3000 12.6 LMK APR 06.8715 12.2 OJR ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 03.2721 15.4 CCDV SFK APR 06.2965 13.4 LMK APR 03.8167 <14.2 VJA APR 06.8125 13.8 VJA APR 03.9375 <14.2 OJR APR 06.9528 14.7 POX APR 04.3438 <14.0 LMK APR 07.0566 14.47 CCDV WGR APR 04.9550 <14.1 MGH APR 07.1000 <14.0 CGF APR 05.8632 13.2 VJA APR 07.2181 <14.2 AAP ---------------------------------------------------------------------------- 0945+34 RZ LEONIS MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable RZ LMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 02.9480 16.1 PYG APR 05.8780 14.0: PYG APR 03.3431 <14.5 LMK APR 06.8764 13.9 POX APR 04.3368 <14.4 LMK ---------------------------------------------------------------------------- 1910-26 V729 SAGITTARII The dwarf nova type cataclysmic variable V729 SGR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 04.6390 <14.0 SRX APR 06.7210 13.5 SRX APR 05.7010 13.8 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AAP - A. ABBOTT, CANADA OCR - C. OTTEN, BELGIUM CGF - G. CHAPLE JR., USA OJR - J. OSORIO, SPAIN CMP - R. CAMPBELL, USA POX - M. POXON, ENGLAND CPS - P. CLOESEN, BELGIUM PYG - G. POYNER, ENGLAND DLA - A. DILL, USA SFK - F. SCHEDER, USA GCO - C. GUALDONI, ITALY SJZ - J. SPEIL, POLAND GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA KIS - G. KRISCH, GERMANY VJA - J. VIRTANEN, FINLAND LMK - M. LINNOLT, USA WGR - G. WALKER, USA MGH - H. MCGEE, ENGLAND YSD - S. YOUNG, USA MTH - H. MATSUYAMA, JAPAN 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! ____________________________________________________________________________