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: 1833-33 V4745 SGR = N SGR 03 No. 1151 0217+70 AM CAS 0741-12 UY PUP April 28, 2003 0547-05 CN ORI 0910+09 GZ CNC 0606-71 AD MEN 0945-23 AG HYA 0611+15 CZ ORI 1344+08 CR BOO 0725+06 SV CMI ---------------------------------------------------------------------------- 1833-33 V4745 SGR = N SGR 03 We have been informed by the Central Bureau for Astronomical Telegrams (IAU Circular 8124) that N. Samus, Institute of Astronomy, Moscow, reports that 1833-33 Nova Sgr 2003 has been given the name V4745 Sgr. Below are recent observtions of the nova received since News Flash 1150: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 27.2053 8.1 CCDR LIW APR 28.1973 9.39 CCDB LIW APR 27.2075 8.3 CCDR LIW APR 28.5033 9.0 LMT APR 28.1949 9.47 CCDV LIW APR 28.5709 9.0 SRX ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 18.1000 <13.5 CGF APR 26.1083 12.7 CGF APR 21.1000 <13.5 CGF APR 27.2875 12.8 LMK APR 25.1160 13.2 CGF ---------------------------------------------------------------------------- 0547-05 CN ORIONIS The dwarf nova type (Z CAM subclass) cataclysmic variable CN ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 25.4040 <14.0 SRX APR 27.2819 14.4 LMK APR 26.3903 <13.9 MTH APR 27.3882 <13.7 MTH APR 26.3920 <13.8 SRX APR 28.4040 13.0 SRX ---------------------------------------------------------------------------- 0606-71 AD MENSAE The dwarf nova type (SS CYG subclass) cataclysmic variable AD MEN appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 26.4080 <14.8 SRX APR 28.4220 14.2 SRX APR 27.4680 <14.4 SRX APR 28.4470 14.2 SRX APR 28.3990 14.2 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 APR 24.3850 <14.0 SRX APR 26.3930 12.4 SRX APR 25.4060 <14.0 SRX APR 27.2938 12.1 LMK APR 26.3750 <13.5 MTH APR 27.3750 12.5 MTH ---------------------------------------------------------------------------- 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 APR 25.4070 14.4 SRX APR 26.4104 13.5 MTH APR 25.4070 14.4 SRX APR 27.3181 13.1 LMK APR 26.0979 13.5: CGF APR 28.4060 13.3 SRX APR 26.3960 13.3 SRX ---------------------------------------------------------------------------- 0741-12 UY PUPPIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UY PUP may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 24.4200 <14.6 SRX APR 27.3361 14.8 LMK APR 25.4140 15.0 SRX APR 28.4070 14.8 SRX APR 26.4120 14.7 SRX ---------------------------------------------------------------------------- 0910+09 GZ CANCRI The dwarf nova type cataclysmic variable GZ CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 24.1486 15.2 SXN APR 27.3979 14.0 LMK APR 24.3890 <14.4 SRX APR 27.4630 14.0 SRX APR 25.4160 14.8 SRX APR 27.8993 13.0 GUN APR 26.4010 <14.8 SRX APR 28.3910 13.4 SRX ---------------------------------------------------------------------------- 0945-23 AG HYDRAE The dwarf nova type cataclysmic variable AG HYA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 25.4150 <15.0 SRX APR 27.3715 14.7: LMK APR 26.3990 14.8 SRX APR 28.3920 14.9 SRX ---------------------------------------------------------------------------- 1344+08 CR BOOTIS The cataclysmic variable CR BOO appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 23.2382 15.1 SXN APR 28.2104 13.7 SXN APR 23.9229 14.3 GCO ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. CHAPLE JR., USA LMT - M. LEGUTKO, POLAND GCO - C. GUALDONI, ITALY MTH - H. MATSUYAMA, JAPAN GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA LIW - W. LILLER, CHILE SXN - M. SIMONSEN, USA LMK - M. LINNOLT, 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! ____________________________________________________________________________