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: 0853-70 SY VOL 1925+42 V1504 CYG No. 1169 1251+27 GO COM 2026-45 TU IND June 3, 2003 1804+38 PR HER ---------------------------------------------------------------------------- 0853-70 SY VOLANTIS The dwarf nova type cataclysmic variable SY VOL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 02.3840 <14.8 SRX JUN 03.4760 14.8 SRX ---------------------------------------------------------------------------- 1251+27 GO COMAE BERENICES The dwarf nova type (SU UMA subclass) cataclysmic variable GO COM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 31.9630 <14.8 PYG JUN 02.9480 13.3 MGH JUN 01.2139 <14.8 SXN JUN 02.9500 13.0 JCN JUN 01.4264 <13.5 MTH JUN 02.9597 13.0 JCN JUN 02.4326 <13.5 MTH JUN 03.0090 13.0 JCN JUN 02.9180 13.4: MGH JUN 03.1313 13.7 SWT JUN 02.9470 13.5 PYG JUN 03.2743 13.7 LMK The most recent confirmed outburst to be recorded in the AAVSO International Database lasted several days and occurred in April 1998. The object reached an approximate visual magnitude of 13.5. Please continue to keep a close eye on this outburst. Those with CCDs are particularly encouraged observe with a frequency of every 3 to 5 minutes in order to observe superhumps. ---------------------------------------------------------------------------- 1804+38 PR HERCULIS The dwarf nova type cataclysmic variable PR HER may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 01.2708 <15.3 SXN JUN 03.1875 <14.5 TDB JUN 02.2319 14.5 SWT ---------------------------------------------------------------------------- 1925+42 V1504 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V1504 CYG may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 01.0440 <15.0 PYG JUN 03.0420 14.8: PYG JUN 01.3396 <15.1 SXN ---------------------------------------------------------------------------- 2026-45 TU INDI The dwarf nova type 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 MAY 28.5690 <15.0 SRX MAY 30.5970 <14.8 SRX MAY 29.5780 <14.8 SRX JUN 03.4800 14.8 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: JCN - C. JONES, ENGLAND SRX - R. STUBBINGS, AUSTRALIA LMK - M. LINNOLT, USA SWT - R. STEWART, USA MGH - H. MCGEE, ENGLAND SXN - M. SIMONSEN, USA MTH - H. MATSUYAMA, JAPAN TDB - D. TAYLOR, CANADA PYG - G. POYNER, ENGLAND 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! ____________________________________________________________________________