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: 0953-67 OQ CAR 2023+43 V503 CYG No. 1148 1753-29 V735 SGR 2026-45 TU IND April 24, 2003 1830-37 BP CRA 2053+25 VW VUL 1848+26 CY LYR ---------------------------------------------------------------------------- 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 APR 19.3939 <14.4 SRX APR 23.4580 14.6 SRX APR 20.4049 <14.6 SRX APR 24.4010 14.3 SRX APR 22.4300 <14.8 SRX ---------------------------------------------------------------------------- 1753-29 V735 SAGITTARII The dwarf nova type (Z CAM subclass) cataclysmic variable V735 SGR may be in outburst, as indicated by the following observation: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 24.6120 13.5 SRX According to observations in the AAVSO International Database, V735 Sgr is fainter than visual magnitude 15.5 at minimum. ---------------------------------------------------------------------------- 1830-37 BP CORONAE AUSTRINAE The dwarf nova type (Z CAM subclass) cataclysmic variable BP CRA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 24.5740 14.6 SRX APR 24.5989 14.6 SRX According to observations in the AAVSO International Database, BP CrA is fainter than visual magnitude 15.5 at minimum. ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type (UG subclass) cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 23.3048 13.2 SXN APR 24.2979 13.5 TDB APR 23.4667 13.2 LMK According to observations in the AAVSO International Database, CY Lyr is 18th magnitude CCDV at minimum. ---------------------------------------------------------------------------- 2023+43 V503 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V503 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 24.4300 16.4 CCDV JM APR 09.1150 <14.2 MGH MAR 27.4270 <16.5 CCDV JM APR 23.3819 14.2 SXN MAR 31.1583 <14.2 MUY APR 24.3326 14.0 TDB MAR 31.4230 17.5 CCDV JM ---------------------------------------------------------------------------- 2026-45 TU INDI The dwarf nova type (UG subclass) cataclysmic variable TU IND appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 04.6360 <14.2 SRX APR 13.7280 <14.8 SRX APR 05.6940 <14.8 SRX APR 19.6419 <13.8 SRX APR 06.7110 15.0 SRX APR 24.5780 14.0 SRX APR 09.6630 15.0 SRX ---------------------------------------------------------------------------- 2053+25 VW VULPECULAE The dwarf nova type (UG subclass) cataclysmic variable VW VUL may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 23.3610 14.5 SXN According to observations in the AAVSO International Database, VW Vul is fainter than CCDV magnitude 16.5 at minimum. ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: JM - R. JAMES, USA SRX - R. STUBBINGS, AUSTRALIA LMK - M. LINNOLT, USA SXN - M. SIMONSEN, USA MGH - H. MCGEE, ENGLAND TDB - D. TAYLOR, CANADA MUY - E. MUYLLAERT, BELGIUM Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Elizabeth O. Waagen, Senior Technical Assistant on behalf of Janet A. Mattei, Director ____________________________________________________________________________ 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! ____________________________________________________________________________