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: 0139+37 AR AND 1804+67 EX DRA No. 343 0207-63 WX HYI 1841+43 V344 LYR September 18, 1998 1529-40 BR LUP 2043+41 V516 CYG 1612-54 HP NOR ---------------------------------------------------------------------------- 0139+37 AR ANDROMEDAE The dwarf nova type cataclysmic variable AR AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 15.2139 <14.5 HSG SEP 18.2557 12.6 BEB SEP 18.1049 13.4 BRJ SEP 18.2872 12.6 BEB ---------------------------------------------------------------------------- 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 SEP 12.4299 14.6 SRX SEP 17.6215 12.5 SRX SEP 14.98 <13.7 MLF SEP 17.7944 12.5 SRX SEP 15.4083 <13.7 SRX SEP 18.087 12.8 MLF SEP 17.103 12.5 SJX SEP 18.4451 12.8 SRX SEP 17.3868 12.8 SRX ---------------------------------------------------------------------------- 1529-40 BR LUPI The dwarf nova type (SU UMA subclass) cataclysmic variable BR LUP appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 12.3993 15.0 SRX SEP 17.4292 14.0 SRX SEP 15.4014 14.8 SRX ---------------------------------------------------------------------------- 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 SEP 12.4007 <14.8 SRX SEP 17.3854 13.0 SRX SEP 15.4021 <14.0 SRX SEP 18.4382 13.0 SRX ---------------------------------------------------------------------------- 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 SEP 14.1236 15.2: HSG SEP 17.1347 14.0 HSG SEP 15.1778 15.1: HSG SEP 17.1542 14.0 HSG SEP 15.980 14.9 PYG SEP 18.0785 14.0 BRJ SEP 17.1194 14.1 HSG ---------------------------------------------------------------------------- 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 SEP 15.972 <15.5 PYG SEP 17.022 14.0 CGF ---------------------------------------------------------------------------- 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 SEP 14.1465 <15.5 HSG SEP 17.072 13.8 CGF SEP 15.2000 14.2 HSG SEP 17.1486 13.7 HSG SEP 16.017 14.0 PYG SEP 18.0750 14.0 BRJ ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA POX - M. POXON, ENGLAND BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND CGF - G. CHAPLE JR., USA SJX - J. SMIT, SOUTH AFRICA HSG - G. HANSON II, USA SRX - R. STUBBINGS, AUSTRALIA MLF - L. MONARD, SOUTH AFRICA Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Rebecca Pellock, Technical Assistant on behalf of Janet A. Mattei, Director ____________________________________________________________________________ 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! ____________________________________________________________________________