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: 0547-05 CN ORI 1738+23 V660 HER No. 1162 1523+62 ES DRA 1805-14 UZ SER May 21, 2003 1608-28 V893 SCO ---------------------------------------------------------------------------- 0547-05 CN ORIONIS The dwarf nova type (Z CAM subclass) cataclysmic variable CN ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 09.3840 <13.6 MTH MAY 18.3510 12.9 SRX MAY 17.3750 <12.7 MTH MAY 18.3687 12.8 MTH ---------------------------------------------------------------------------- 1523+62 ES DRACONIS The dwarf nova type cataclysmic variable ES DRA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 14.9760 <14.9 PYG MAY 21.2194 14.7 SXN ---------------------------------------------------------------------------- 1608-28 V893 SCORPII The dwarf nova type cataclysmic variable V893 SCO appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 14.4354 <14.0 LMK MAY 19.3438 12.7 LMK MAY 18.3890 <13.0 SRX ---------------------------------------------------------------------------- 1738+23 V660 HERCULIS The dwarf nova type cataclysmic variable V660 HER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 14.9610 <14.5 PYG MAY 21.2861 14.6 SXN ---------------------------------------------------------------------------- 1805-14 UZ SERPENTIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UZ SER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAY 14.4681 <14.6 LMK MAY 20.4250 12.5 LMK MAY 15.4271 <14.1 LMK MAY 21.2799 13.0 SXN MAY 16.4569 <14.0 LMK ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: LMK - M. LINNOLT, USA SRX - R. STUBBINGS, AUSTRALIA MTH - H. MATSUYAMA, JAPAN SXN - M. SIMONSEN, USA 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! ____________________________________________________________________________