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 1805-14 UZ SER No. 335 0611+15 CZ ORI 1854+30 DM LYR August 26, 1998 0803+62 SU UMA 2023+43 V503 CYG 1454+41 TT BOO 2138+43 SS 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 AUG 24.954 <15.3 PYG AUG 26.4528 14.8 HSG AUG 26.2486 14.6 HSG ---------------------------------------------------------------------------- 0611+15 CZ ORIONIS The dwarf nova type cataclysmic variable CZ ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 21.7951 <13.9 SRX AUG 26.4611 12.8 HSG AUG 25.04 <12.2 KTO ---------------------------------------------------------------------------- 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 AUG 25.03 14.0 KTO AUG 26.4688 12.3 HSG AUG 25.9174 12.3 WDM ---------------------------------------------------------------------------- 1454+41 TT BOOTIS The dwarf nova type (SU UMA subclass) cataclysmic variable TT BOO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 23.1597 <15.3 HSG AUG 25.89 12.8 VET AUG 24.82 <13.7 KTO AUG 25.9 13.0 GUN AUG 24.888 <14.8 PYG AUG 25.91 12.6 VET AUG 25.85 12.6 GUN AUG 26.2063 12.7 HSG AUG 25.87 13.1 VET ---------------------------------------------------------------------------- 1805-14 UZ SERPENTIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UZ SER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 23.5063 <14.8 SRX AUG 25.4444 13.0 SRX AUG 23.9 14.8 VET AUG 25.9 13.0 VET AUG 24.5042 12.8 SRX AUG 26.2083 12.6 HSG ---------------------------------------------------------------------------- 1854+30 DM LYRAE The dwarf nova type cataclysmic variable DM LYR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 26.2188 15.9: HSG AUG 26.2576 15.8 HSG AUG 26.2292 15.8 HSG According to the AAVSO International Database this star is fainter than CCDV magnitude 18 during quiescence. ---------------------------------------------------------------------------- 2023+43 V503 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V503 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 23.1882 <15.2 HSG AUG 26.2354 13.3 HSG AUG 24.971 <15.6 PYG AUG 26.4514 13.4 HSG ---------------------------------------------------------------------------- 2138+43 SS CYGNI The dwarf nova type (SS CYG subclass prototype) cataclysmic variable SS CYG appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 22.1931 11.5 BTH AUG 24.853 10.8 DPA AUG 22.2396 12.0 RR AUG 24.872 11.0 SMI AUG 22.882 12.0 SMI AUG 25.007 10.9 PYG AUG 22.903 11.7 DPA AUG 25.03 11.0 KTO AUG 22.94 11.5 KTO AUG 25.0549 11.5 SET AUG 22.980 12.2 PYG AUG 25.0583 10.8 BMM AUG 23.1140 12.0 BEB AUG 25.067 11.4 SPK AUG 23.2528 11.2 BTH AUG 25.1167 11.2 DIL AUG 23.4167 12.0 HSG AUG 25.1340 10.9 KB AUG 23.5278 11.7 MED AUG 25.139 10.9 BTB AUG 23.8298 11.3 TUB AUG 25.1653 11.0 MDP AUG 23.8600 11.6 BXA AUG 25.2056 11.1 RR AUG 23.9 11.5 VET AUG 25.3090 11.0 AAP AUG 23.9 11.6 VET AUG 25.7916 10.5 TUB AUG 24.1352 11.1 BEB AUG 25.8958 11.2 DKS AUG 24.149 11.1 BTB AUG 25.935 10.7 OJR AUG 24.2069 11.5 KB AUG 26.0000 11.1 BXA AUG 24.2646 10.8 BTH AUG 26.0569 10.9 MDP AUG 24.2917 11.2 RR AUG 26.2382 10.9 HSG AUG 24.4917 11.4 BTH AUG 26.2799 11.5 KMA AUG 24.82 11.1 KTO AUG 26.4521 11.1 HSG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AAP - A. ABBOTT, CANADA KTO - T. KINNUNEN, FINLAND BEB - R. BERG, USA MDP - P. MCDONALD, CANADA BMM - M. BIESMANS, BELGIUM MED - K. MEDWAY, ENGLAND BTB - T. BRETL, USA OJR - J. OSORIO, SPAIN BTH - T. BURROWS, USA PYG - G. POYNER, ENGLAND BXA - A. BARANSKY, UKRAINE RR - R. ROYER, USA DIL - W. DILLON, USA SET - C. STEPHAN, USA DKS - S. DVORAK, USA SMI - A. SMITH, ENGLAND DPA - A. DIEPVENS, BELGIUM SPK - P. SCHMEER, GERMANY GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA TUB - V. TUBOLY, HUNGARY KB - W. KAMINSKI, USA VET - M. VERDENET, FRANCE KMA - M. KOMOROUS, CANADA WDM - M. WESTLUND, SWEDEN 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! ____________________________________________________________________________