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 1552+72 SS UMI No. 1210 0130+31 TW TRI 1640+25 AH HER August 4, 2003 0207-63 WX HYI 1701-32 FQ SCO 0401+50 FO PER 1815-83 NSV 10934 0814+73 Z CAM 1841+43 V344 LYR 1207-43 MU CEN 1848+26 CY LYR 1338-07 HS VIR 2335+12 HX PEG ---------------------------------------------------------------------------- 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 JUL 28.0630 <15.3 PYG AUG 03.0820 13.1 MGH AUG 03.0480 13.4 PYG AUG 04.0250 13.3 PYG ---------------------------------------------------------------------------- 0130+31 TW TRIANGULI The dwarf nova type (Z CAM subclass) cataclysmic variable TW TRI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 28.3514 <14.7 SXN AUG 03.0730 13.3 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 JUL 27.6010 <14.0 SRX AUG 02.5350 13.6 SRX AUG 01.5370 14.9 SRX ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 24.3250 <14.4 SXN AUG 01.1458 13.1 OJR ---------------------------------------------------------------------------- 0814+73 Z CAMELOPARDALIS The dwarf nova type (Z CAM subclass prototype) cataclysmic variable Z CAM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 28.9153 13.0 CPS AUG 01.1361 11.7 CGF JUL 29.8923 13.1 OCR AUG 01.8576 10.8 GUN JUL 29.9069 13.0 CPS AUG 01.8923 11.1 OCR JUL 30.0424 13.0 CPS AUG 01.9438 10.8 CPS JUL 30.1000 13.3 CGF AUG 02.0993 10.8: SUI JUL 30.8750 12.7 GUN AUG 02.2375 10.7 SGE JUL 31.1090 13.2 CGF AUG 02.9220 10.9 PYG JUL 31.2569 12.7 LMK AUG 03.0300 11.0 GRL JUL 31.2757 12.9 SGE AUG 03.8833 10.9 KWO JUL 31.8576 12.0 GUN AUG 03.9100 10.9 PYG JUL 31.8923 12.4 OCR AUG 03.9729 10.8 POX JUL 31.9097 12.8 CPS ---------------------------------------------------------------------------- 1207-43 MU CENTAURI The dwarf nova type (SS CYG subclass) cataclysmic variable MU CEN appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 22.3770 14.4 SRX JUL 27.4250 <14.4 SRX JUL 25.4080 14.2 SRX AUG 02.4750 13.4 SRX JUL 27.3820 13.6 SRX ---------------------------------------------------------------------------- 1338-07 HS VIRGINIS The dwarf nova type cataclysmic variable HS VIR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 31.2938 15.7 LMK AUG 01.4770 14.4 SRX AUG 01.4611 <14.4 MTH AUG 02.4639 <13.6 MTH ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 31.3264 <15.9 LMK AUG 02.0740 14.0 PYG JUL 31.9333 <14.2 OJR AUG 02.9650 14.5 PYG AUG 01.1299 14.2 CGF AUG 03.9560 15.6 PYG AUG 01.9660 14.0 PYG ---------------------------------------------------------------------------- 1640+25 AH HERCULIS The dwarf nova type (Z CAM subclass) cataclysmic variable AH HER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 31.0868 13.6 CGF AUG 02.1208 <10.4 FSU JUL 31.1458 13.28 CCDV GKA AUG 02.2597 11.7 SGE JUL 31.8681 12.7 GUN AUG 02.9056 11.8 GCO JUL 31.8993 12.1 OJR AUG 02.9470 12.0 PYG JUL 31.9049 12.0 GCO AUG 03.9201 12.3 GCO AUG 01.1188 12.4 CGF AUG 03.9370 12.2 PYG AUG 01.9028 11.8 GCO AUG 03.9625 12.8 POX AUG 01.9236 11.6 OCR ---------------------------------------------------------------------------- 1701-32 FQ SCORPII The dwarf nova type (SS CYG subclass) cataclysmic variable FQ SCO appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 31.3597 <14.7 LMK AUG 02.5110 12.9 SRX AUG 01.5240 12.9 SRX ---------------------------------------------------------------------------- 1815-83 NSV 10934 The dwarf nova type cataclysmic variable NSV 10934 may be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 27.3870 <14.8 SRX AUG 02.4960 15.2 SRX AUG 01.4910 <14.4 SRX AUG 02.5460 15.0 SRX ---------------------------------------------------------------------------- 1841+43 V344 LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable V344 LYR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 30.2097 <15.0 SXN AUG 02.0750 15.3 PYG JUL 30.8861 <14.3 OJR AUG 02.1757 15.07 CCDV MDW JUL 31.1778 16.17 CCDV MDW AUG 02.9780 15.6 PYG JUL 31.9076 <14.1 OJR AUG 03.9680 <15.5 PYG AUG 01.9760 15.4 PYG ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 31.1250 16.64 CCDV MDW AUG 02.1201 13.37 CCDV MDW JUL 31.1847 16.70 CCDV GKA AUG 02.3201 13.2 LMK JUL 31.4319 <16.0 LMK AUG 02.8924 13.5 GCO JUL 31.8639 <13.6 GUN AUG 02.9230 13.3 MGH JUL 31.9049 <14.4 OJR AUG 02.9850 13.8 PYG JUL 31.9236 <14.8 GCO AUG 03.2736 <14.0 AAP AUG 01.1000 <14.4 CGF AUG 03.9326 13.8 GCO AUG 01.8646 13.5 GUN AUG 03.9514 13.9 POX AUG 01.9250 13.5 GCO AUG 03.9760 14.2 PYG AUG 01.9840 13.8 PYG ---------------------------------------------------------------------------- 2335+12 HX PEGASI The dwarf nova type cataclysmic variable HX PEG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 25.3076 15.5 TDB AUG 02.0785 12.8 GCO JUL 27.6240 <13.8 SRX AUG 02.5670 12.8 SRX JUL 29.2597 <14.0 TDB AUG 03.0440 12.7 MGH ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AAP - A. ABBOTT, CANADA MGH - H. MCGEE, ENGLAND CGF - G. CHAPLE JR., USA MTH - H. MATSUYAMA, JAPAN CPS - P. CLOESEN, BELGIUM OCR - C. OTTEN, BELGIUM FSU - S. FANUTTI, CANADA OJR - J. OSORIO, SPAIN GCO - C. GUALDONI, ITALY POX - M. POXON, ENGLAND GKA - K. GRAHAM, USA PYG - G. POYNER, ENGLAND GRL - B. GRANSLO, NORWAY SGE - G. SARTY, CANADA GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA KWO - W. KRIEBEL, GERMANY SUI - R. SMITH, ENGLAND LMK - M. LINNOLT, USA SXN - M. SIMONSEN, USA MDW - W. MACDONALD II, CANADA TDB - D. TAYLOR, CANADA 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! ____________________________________________________________________________