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: 1612-54 HP NOR 1937+21 FY VUL No. 632 1804+67 EX DRA 2043+41 V516 CYG June 7, 2000 1858+42 V493 LYR 2209+12 RU PEG ---------------------------------------------------------------------------- 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 JUN 05.5604 <15.3 PEX JUN 06.5382 13.8 PEX ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing dwarf nova type cataclysmic variable EX DRA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 06.928 15.0 RMQ JUN 07.2431 13.9 HSG JUN 06.979 14.1 PYG ---------------------------------------------------------------------------- 1858+42 V493 LYRAE The dwarf nova type cataclysmic variable V493 LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 03.0644 16.33 CCD DRG JUN 07.086 14.3 PYG JUN 03.2271 <15.4 HSG JUN 07.2076 14.4 HSG JUN 04.2431 <14.1 SXN JUN 07.208 14.3 HSG JUN 04.913 <15.2 RMQ JUN 07.2375 14.2 SXN JUN 06.933 14.3 RMQ JUN 07.2396 14.4 HSG JUN 06.993 14.2 PYG JUN 07.2771 14.2 SXN JUN 06.993 14.2 PYG JUN 07.3042 14.2 SXN ---------------------------------------------------------------------------- 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 JUN 04.2860 14.8 CCDV ZRE JUN 07.075 13.6 PYG JUN 06.953 14.5 RMQ ---------------------------------------------------------------------------- 2043+41 V516 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V516 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 04.2290 17.32 CCDV ZRE JUN 07.051 14.0 PYG JUN 04.889 <14.1 RMQ JUN 07.2514 13.9 HSG JUN 06.924 13.8 RMQ ---------------------------------------------------------------------------- 2209+12 RU PEGASI The dwarf nova type (SS CYG subclass) cataclysmic variable RU PEG may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 03.010 12.6 RMQ JUN 06.961 10.7 RMQ JUN 06.0104 12.2 DPV ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DPV - P. DUBOVSKY, SLOVAKIA PYG - G. POYNER, ENGLAND DRG - R. DIETHELM, SWITZERLAND RMQ - M. RESZELSKI, POLAND HSG - G. HANSON II, USA SXN - M. SIMONSEN, USA PEX - A. PEARCE, AUSTRALIA ZRE - R. ZISSELL, USA 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! ____________________________________________________________________________