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: 0124+57 KU CAS 0953-67 OQ CAR No. 1134 0207-63 WX HYI 1120-35 V442 CEN March 31, 2003 0518+00 BI ORI 1140-03 TW VIR 0611+15 CZ ORI 1804+67 EX DRA 0725+06 SV CMI 1805-14 UZ SER 0750-24 BX PUP 1812+67 IX DRA 0830+21 CC CNC 1911-00 FO AQL ---------------------------------------------------------------------------- 0124+57 KU CASSIOPEIAE The dwarf nova type (SS CYG subclass) cataclysmic variable KU CAS is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 24.8190 <15.3 PYG MAR 30.8460 13.4 MGH MAR 25.0000 <13.8 CGF MAR 30.8670 13.5 PYG MAR 27.8880 <13.8 MGH ---------------------------------------------------------------------------- 0207-63 WX HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable WX HYI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 24.4180 15.0 SRX MAR 31.4040 13.7 SRX MAR 29.4300 12.0 SRX ---------------------------------------------------------------------------- 0518+00 BI ORIONIS The dwarf nova type cataclysmic variable BI ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 25.1430 16.5 CCDV JM MAR 29.4400 14.8 SRX MAR 25.4160 <14.8 SRX MAR 31.1120 14.9 CCDV JM MAR 28.1420 14.6 CCDV JM MAR 31.4060 <14.8 SRX ---------------------------------------------------------------------------- 0611+15 CZ ORIONIS The dwarf nova type cataclysmic variable CZ ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 28.1740 15.7 CCDV JM MAR 30.8440 12.6 PYG MAR 29.4170 <14.0 SRX MAR 31.1132 11.9 TDB MAR 29.8290 11.8 VET MAR 31.1500 12.6 CCDV JM MAR 30.2590 12.4 LMK MAR 31.4140 12.5 SRX ---------------------------------------------------------------------------- 0725+06 SV CANIS MINORIS The dwarf nova type (Z CAM subclass) cataclysmic variable SV CMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 30.1590 <14.3 SRB MAR 30.8690 <13.8 MGH MAR 30.3021 <13.5 LMK MAR 31.4090 13.6 SRX MAR 30.5056 <13.8 MTH MAR 31.4236 13.7 MTH ---------------------------------------------------------------------------- 0750-24 BX PUPPIS The dwarf nova type (Z CAM subclass) cataclysmic variable BX PUP appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 25.4260 <14.8 SRX MAR 29.4210 14.4 SRX MAR 26.3104 <15.2 LMK MAR 31.4340 14.4 SRX ---------------------------------------------------------------------------- 0830+21 CC CANCRI The dwarf nova type cataclysmic variable CC CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 29.9870 <14.8 PYG MAR 31.1201 13.2 SXN MAR 30.8403 13.2 MUY MAR 31.1431 13.8 TDB MAR 30.9080 13.5 MGH MAR 31.4130 13.5 SRX ---------------------------------------------------------------------------- 0953-67 OQ CARINAE The dwarf nova type cataclysmic variable OQ CAR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 30.5880 <14.8 SRX MAR 31.4240 14.2 SRX ---------------------------------------------------------------------------- 1120-35 V442 CENTAURI The dwarf nova type (SS CYG subclass) cataclysmic variable V442 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 27.8300 <14.4 MLF MAR 30.7840 12.3 MLF MAR 29.4560 12.4 SRX MAR 30.8333 12.2 SJX MAR 29.4722 12.1 LMK MAR 31.4190 12.6 SRX ---------------------------------------------------------------------------- 1140-03 TW VIRGINIS The dwarf nova type cataclysmic variable TW VIR is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 26.3646 <15.0 LMK MAR 29.4760 12.6 SRX MAR 27.6850 <14.0 SRX MAR 30.2861 13.0 SRB MAR 28.2890 13.1 CCDV JM MAR 30.6060 12.8 SRX MAR 29.3007 12.4 CMP MAR 31.0340 <13.9 MGH MAR 29.4500 12.6 SRX MAR 31.2610 13.7 CCDV JM MAR 29.4681 12.6 LMK MAR 31.4460 13.2 SRX ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The dwarf nova type cataclysmic variable EX DRA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 24.1528 14.94 CCD DRG MAR 30.0560 13.0 PYG MAR 25.0780 15.4: PYG ---------------------------------------------------------------------------- 1805-14 UZ SERPENTIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UZ SER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 26.4170 <16.0 CCDV JM MAR 30.6230 <14.0 SRX MAR 27.6670 <14.0 SRX MAR 31.6520 13.2 SRX ---------------------------------------------------------------------------- 1812+67 IX DRACONIS The dwarf nova type cataclysmic variable IX DRA may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 25.0660 <14.5 PYG MAR 30.0600 15.6: PYG ---------------------------------------------------------------------------- 1911-00 FO AQUILAE The dwarf nova type (SS CYG subclass) cataclysmic variable FO AQL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 26.4440 <16.5 CCDV JM MAR 31.6830 13.8 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. CHAPLE JR., USA MUY - E. MUYLLAERT, BELGIUM CMP - R. CAMPBELL, USA PYG - G. POYNER, ENGLAND DRG - R. DIETHELM, SWITZERLAND SJX - J. SMIT, SOUTH AFRICA JM - R. JAMES, USA SRB - R. STINE, USA LMK - M. LINNOLT, USA SRX - R. STUBBINGS, AUSTRALIA MGH - H. MCGEE, ENGLAND SXN - M. SIMONSEN, USA MLF - I. MONARD, SOUTH AFRICA TDB - D. TAYLOR, CANADA MTH - H. MATSUYAMA, JAPAN VET - M. VERDENET, FRANCE 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! ____________________________________________________________________________