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: SPECIAL MESSAGE 0939+52 ER UMA No. 519 0207-63 WX HYI 1612-54 HP NOR October 27, 1999 0749+22 U GEM 1937+21 FY VUL 0803+62 SU UMA 1944+36A V811 CYG 0855+18 SY CNC 2244-27 TY PSA ---------------------------------------------------------------------------- ATTENTION NEWS FLASH READERS! The AAVSO Annual Meeting is taking place over the next several days in Hyannis, Massachusetts. The majority of the AAVSO technical staff will be away from the office attending this meeting. Therefore, the AAVSO News Flash WILL NOT BE PUBLISHED again until Monday, November 1, 1999. Your nightly observations will be entered Thursday and Friday, and the Quick Look file on our web page will be updated as usual. ---------------------------------------------------------------------------- 0207-63 WX HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable WX HYI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 20.4805 13.9 WPX OCT 26.4722 12.5 SRX OCT 22.4299 <13.7 SRX OCT 26.758 12.7 MLF ---------------------------------------------------------------------------- 0749+22 U GEMINORUM The dwarf nova type (SS CYG subclass) cataclysmic variable U GEM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 25.333 14.1 MRV OCT 27.177 9.9 MUY OCT 27.1667 9.9 GAJ ---------------------------------------------------------------------------- 0803+62 SU URSAE MAJORIS The dwarf nova type (SU UMA subclass prototype) cataclysmic variable SU UMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 18.054 14.3 PYG OCT 26.7743 12.1 DPV OCT 19.194 <13.9 MUY OCT 27.187 11.7 MUY ---------------------------------------------------------------------------- 0855+18 SY CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable SY CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 19.167 13.5 MUY OCT 27.185 11.6 MUY ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 19.200 <14.2 MUY OCT 27.192 12.8 MUY ---------------------------------------------------------------------------- 1612-54 HP NORMAE The dwarf nova type (Z CAM subclass) cataclysmic variable HP NOR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 16.4507 <13.4 SRX OCT 26.4778 13.0 SRX OCT 22.4215 <13.2 SRX ---------------------------------------------------------------------------- 1937+21 FY VULPECULAE The dwarf nova type (Z CAM subclass) cataclysmic variable FY VUL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 19.849 14.4 PYG OCT 25.825 13.6 PYG OCT 24.778 13.8 MUY OCT 26.769 13.8 MUY ---------------------------------------------------------------------------- 1944+36A V811 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V811 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 15.168 16.1 CCDV OCN OCT 26.762 13.8 MUY OCT 24.775 <14.3 MUY ---------------------------------------------------------------------------- 2244-27 TY PISCIS AUSTRINI The dwarf nova type (SU UMA subclass) cataclysmic variable TY PSA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 01.4361 14.4 SRX OCT 26.4736 13.1 SRX OCT 22.4292 <13.1 SRX OCT 26.6021 13.2 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DPV - P. DUBOVSKY, SLOVAKIA OCN - S. O'CONNOR, CANADA GAJ - J. GARCIA, ARGENTINA PYG - G. POYNER, ENGLAND MLF - L. MONARD, SOUTH AFRICA SRX - R. STUBBINGS, AUSTRALIA MRV - R. MODIC, USA WPX - P. WILLIAMS, NEW ZEALAND 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! 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! ____________________________________________________________________________