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: 1102-55 V342 CEN 1854+30 DM LYR No. 1012 1804+67 EX DRA 1911-00 FO AQL August 15, 2002 1848+26 CY LYR 2053+25 VW VUL ---------------------------------------------------------------------------- 1102-55 V342 CENTAURI The dwarf nova type cataclysmic variable V342 CEN appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 01.3770 15.0 SRX AUG 14.3710 14.5 SRX ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing dwarf nova type cataclysmic variable EX DRA appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 12.1000 <14.6 CGF AUG 13.3896 15.0 LMK AUG 12.9260 15.5 PYG AUG 13.9760 14.8 PYG AUG 13.1000 <14.5 CGF ---------------------------------------------------------------------------- 1848+26 CY LYRAE The dwarf nova type cataclysmic variable CY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 11.0424 <16.0 TDB AUG 13.9400 <14.0 MGH AUG 11.9285 <14.4 OJR AUG 13.9980 <15.6 PYG AUG 11.9330 <14.0 MGH AUG 14.0090 <14.4 POX AUG 12.1000 <14.4 CGF AUG 14.8563 13.6 GCO AUG 12.8438 <13.6 GCO AUG 14.9420 13.4 MGH AUG 12.9540 <15.6 PYG AUG 15.2174 13.66 CCDV GKA AUG 13.1000 <14.0 CGF AUG 15.2243 13.3 SXN ---------------------------------------------------------------------------- 1854+30 DM LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable DM LYR appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 07.1625 <14.8 SXN AUG 12.9520 <15.7 PYG AUG 09.1986 <14.6 SXN AUG 13.9970 <15.7 PYG AUG 10.1528 <14.4 SXN AUG 15.2257 14.8 SXN ---------------------------------------------------------------------------- 1911-00 FO AQUILAE The dwarf nova type (SS CYG subclass) cataclysmic variable FO AQL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 11.3847 <16.2 LMK AUG 13.2583 16.2 CCDR SNN AUG 11.5300 <14.8 SRX AUG 13.4153 <16.2 LMK AUG 12.1000 <14.5 CGF AUG 13.4970 <14.4 SRX AUG 12.5530 <14.4 SRX AUG 13.9720 <15.2 PYG AUG 12.9190 <15.2 PYG AUG 14.3780 <14.0 SRX AUG 13.1000 <13.8 CGF AUG 15.2431 13.6 SXN ---------------------------------------------------------------------------- 2053+25 VW VULPECULAE The dwarf nova type cataclysmic variable VW VUL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 12.9600 15.2 PYG AUG 14.0507 14.5 POX AUG 12.9653 <13.7 GCO AUG 14.8924 13.4 GCO AUG 13.9424 <13.7 GCO AUG 15.2618 13.1 SXN AUG 14.0020 14.2 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: CGF - G. CHAPLE JR., USA POX - M. POXON, ENGLAND GCO - C. GUALDONI, ITALY PYG - G. POYNER, ENGLAND GKA - K. GRAHAM, USA SNN - J. SANFORD, USA LMK - M. LINNOLT, USA SRX - R. STUBBINGS, AUSTRALIA MGH - H. MCGEE, ENGLAND SXN - M. SIMONSEN, USA OJR - J. OSORIO, SPAIN TDB - D. TAYLOR, CANADA 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 Gamze Menali, 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! ____________________________________________________________________________