THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 25 Birch Street, Cambridge, MA 02138 USA Tel. 617-354-0484 Fax 617-354-0665 INTERNET: aavso@aavso.org * * * AAVSO NEWS FLASH * * * Subject: 0109+37 FO AND 1612-54 HP NOR No. 304 0206+57A TZ PER 1804+67 EX DRA May 27, 1998 0217+70 AM CAS 1830+24A CH HER 0809-76 Z CHA 1841+43 V344 LYR 1317-41 V803 CEN 1920+52 V1113 CYG 1552+72 SS UMI 1944+36A V811 CYG ---------------------------------------------------------------------------- 0109+37 FO ANDROMEDAE The dwarf nova type (SU UMA subclass) cataclysmic variable FO AND appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 03.4174 <15.4 HSG JUL 04.4076 14.2 HSG ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 02.4188 14.6: HSG JUL 04.4111 13.0 HSG JUL 03.4111 13.6 HSG JUL 05.076 12.8 PYG ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 04.4042 15.5: HSG JUL 06.1417 13.3 BRJ JUL 06.136 13.7 CGF ---------------------------------------------------------------------------- 0809-76 Z CHAMAELONIS The dwarf nova type (SU UMA subclass) cataclysmic variable Z CHA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 30.3597 <14.4 SRX JUL 04.5674 12.4 SRX JUL 04.3889 12.3 SRX ---------------------------------------------------------------------------- 1317-41 V803 CENTAURI The dwarf nova type (IBWD subclass) cataclysmic variable V803 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 30.3778 15.0 SRX JUL 04.5236 13.1 SRX JUN 30.73 <13.4 MLF JUL 04.726 12.9 MLF JUL 01.70 <13.9 MLF JUL 05.695 12.9 MLF JUL 04.4319 13.1 SRX ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 04.3743 <15.8 HSG JUL 06.141 14.5: CGF JUL 05.019 <15.4 PYG ---------------------------------------------------------------------------- 1612-54 HP NORMAE The dwarf nova type (Z CAM subclass) cataclysmic variable HP NOR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 26.3861 <14.8 SRX JUL 03.722 13.4 MLF JUL 02.48 <14.0 WPX JUL 04.3924 13.5 SRX JUL 02.722 13.3 MLF JUL 04.729 13.4 MLF ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The dwarf nova type (UG+E subclass) cataclysmic variable EX DRA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 30.3785 <15.3 HSG JUL 05.017 13.9 PYG JUL 02.3799 15.1 HSG JUL 06.1326 14.1 ZRE JUL 03.3722 14.8 HSG JUL 06.133 14.0 CGF JUL 04.3729 14.7 HSG ---------------------------------------------------------------------------- 1830+24A CH HERCULIS The dwarf nova type (UG subclass) cataclysmic variable CH HER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 02.3847 <15.7 HSG JUL 04.3764 14.8 HSG JUL 03.3778 15.4 HSG JUL 05.003 14.3 PYG JUL 03.4076 15.5 HSG JUL 06.1167 14.1 MKJ ---------------------------------------------------------------------------- 1841+43 V344 LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable V344 LYR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 21.991 <15.5 PYG JUL 01.971 14.6 PYG JUN 28.001 14.3 PYG JUL 05.033 14.7 PYG JUN 28.072 14.3 PYG ---------------------------------------------------------------------------- 1920+52 V1113 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V1113 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 27.973 <15.6 PYG JUL 05.063 14.4 PYG ---------------------------------------------------------------------------- 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 JUL 03.3938 <14.8 HSG JUL 06.1090 13.9 SWT JUL 04.3903 14.6 HSG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND CGF - G. CHAPLE JR., USA SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA SWT - R. STEWART, USA MKJ - J. MCKENNA, USA WPX - P. WILLIAMS, NEW ZEALAND MLF - L. MONARD, SOUTH AFRICA 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 ____________________________________________________________________________ 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 sending a message to: observations@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 We look forward to including your observations in future editions of AAVSO NEWS FLASH! ___________________________________________________________________________