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: 0131+15B SN 2003GD No. 1177 1804+67 EX DRA 1953+77 AB DRA June 16, 2003 1925+42 V1504 CYG 2138+43 SS CYG 1944+36A V811 CYG ---------------------------------------------------------------------------- NOTE: Please note that the designation of the new supernova in NGC 628 (M74) has been changed from 0131+15A (as reported in News Flash No. 1176) to 0131+15B. Updated charts have been posted reflecting this change. All observations of this object should be reported as 0131+15B SN 2003GD. Also, please continue to keep a close eye on this new object. ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing 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 JUN 10.1583 15.4 CCDV ZRE JUN 16.1299 13.2 CGF JUN 13.0190 15.3: PYG ---------------------------------------------------------------------------- 1925+42 V1504 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V1504 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 11.4646 <14.7 LMK JUN 13.0460 14.5 PYG JUN 12.4396 <14.6 LMK JUN 15.2715 <14.2 TDB ---------------------------------------------------------------------------- 1944+36A V811 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V811 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 11.4306 <14.5 LMK JUN 15.2236 13.6 TDB JUN 12.4368 <14.2 LMK JUN 15.5111 13.3 LMK JUN 14.4854 13.4 LMK ---------------------------------------------------------------------------- 1953+77 AB DRACONIS The dwarf nova type (Z CAM subclass) cataclysmic variable AB DRA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 13.0190 14.7 PYG JUN 16.1465 13.0 SXN JUN 16.1306 13.0 CGF ---------------------------------------------------------------------------- 2138+43 SS CYGNI The dwarf nova type (SS CYG subclass prototype) cataclysmic variable SS CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 13.0610 12.4 PYG JUN 15.8875 11.0 MAV JUN 13.9458 12.0 CPS JUN 15.9160 10.6 VET JUN 14.8715 <11.0 MAV JUN 15.9285 10.8 CPS JUN 14.9493 12.0 CPS JUN 15.9493 11.0 BVE JUN 15.0493 11.6 BVE JUN 15.9670 11.0 SPK JUN 15.0800 11.9 SPK JUN 15.9813 10.9 GMY JUN 15.2319 11.4 KMA JUN 16.0083 10.9 GMY JUN 15.2736 11.1 TDB JUN 16.0444 10.6: SUI JUN 15.5479 11.2 LMK JUN 16.1625 10.0 KMA JUN 15.8819 11.1 CCD MAV JUN 16.2243 10.0 TDB JUN 15.8840 10.8 GUN ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BVE - E. VAN BALLEGOIJ, NETHERLANDS PYG - G. POYNER, ENGLAND CGF - G. CHAPLE JR., USA SPK - P. SCHMEER, GERMANY CPS - P. CLOESEN, BELGIUM SUI - R. SMITH, ENGLAND GMY - M. GLENNON, IRELAND SXN - M. SIMONSEN, USA GUN - J. GUNTHER, FRANCE TDB - D. TAYLOR, CANADA KMA - M. KOMOROUS, CANADA VET - M. VERDENET, FRANCE LMK - M. LINNOLT, USA ZRE - R. ZISSELL, USA MAV - D. MATSNEV, RUSSIA 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! ____________________________________________________________________________