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: 0640-16 HL CMA 1140-03 TW VIR No. 541 0641+28 IR GEM 1841+43 V344 LYR December 8, 1999 0803+62 SU UMA 1918+04 V1494 AQL (update) 0814+73 Z CAM 2023+43 V503 CYG 0939+52 ER UMA 2043+41 V516 CYG ---------------------------------------------------------------------------- 0640-16 HL CANIS MAJORIS The dwarf nova type cataclysmic variable HL CMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 05.958 12.7 OJR DEC 08.16 11.6 DGP DEC 07.983 12.5 OJR DEC 08.3410 11.6 SXN DEC 08.115 12.0 PYG ---------------------------------------------------------------------------- 0641+28 IR GEMINORUM The dwarf nova type (SU UMA subclass) cataclysmic variable IR GEM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 05.085 <15.2 PYG DEC 08.16 12.8 DGP DEC 05.233 <13.6 MUY DEC 08.215 12.3 MUY DEC 07.918 <13.6 MUY DEC 08.2540 12.41 CCDV ZRE DEC 08.056 13.3 PYG DEC 08.3771 12.2 SXN ---------------------------------------------------------------------------- 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 DEC 03.983 14.3 PYG DEC 07.925 <13.9 MUY DEC 05.113 14.1 PYG DEC 08.101 13.7 PYG DEC 05.237 <13.9 MUY DEC 08.233 13.1 MUY DEC 06.9340 <13.9 DPV ---------------------------------------------------------------------------- 0814+73 Z CAMELOPARDALIS The dwarf nova type (Z CAM subclass prototype) cataclysmic variable Z CAM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 05.105 13.6 PYG DEC 07.975 11.4 OJR DEC 05.238 13.3 MUY DEC 08.091 10.7 PYG DEC 06.76 10.5 GUN DEC 08.1056 11.4 VFK DEC 06.9306 11.4 DPV DEC 08.16 10.6 DGP DEC 07.927 10.8 MUY DEC 08.230 10.7 MUY DEC 07.9604 10.9 BRJ ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 05.110 14.8 PYG DEC 08.094 13.3 PYG DEC 05.242 <13.4 MUY DEC 08.235 13.3 MUY DEC 07.932 13.3 MUY ---------------------------------------------------------------------------- 1140-03 TW VIRGINIS The dwarf nova type cataclysmic variable TW VIR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 05.7042 <13.9 SRX DEC 08.226 13.7 MUY ---------------------------------------------------------------------------- 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 NOV 29.740 <15.0 PYG DEC 07.736 14.6 PYG ---------------------------------------------------------------------------- 1918+04 V1494 AQUILAE Following are observations of the new nova in Aquila that have been submitted to the AAVSO since the release of News Flash No. 540: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 02.7153 4.4 HEV DEC 07.674 5.6 ZAG DEC 03.6576 4.3 SBX DEC 07.6771 5.7 RMQ DEC 03.7000 4.1 HEV DEC 07.6875 5.5 DOH DEC 04.0854 4.3 HRI DEC 07.6875 5.5 BSR DEC 04.7630 4.9 ONJ DEC 07.69 5.5 BLP DEC 04.854 5.1 OJR DEC 07.6924 5.6 FSE DEC 04.9030 4.6 TYS DEC 07.6938 5.6 HEV DEC 05.0000 4.6 FDD DEC 07.7000 5.5 FSE DEC 05.0486 5.1 KJH DEC 07.708 5.5 TUB DEC 05.6806 5.0 FSE DEC 07.7090 5.5 FSE DEC 05.8063 5.2 FSE DEC 07.72 5.5 CMH DEC 05.833 5.2 OJR DEC 07.7208 5.6 FSE DEC 05.849 5.1 RZD DEC 07.722 5.5 PYG DEC 05.9528 5.1 GLG DEC 07.733 5.6 FMC DEC 06.0417 5.3 KB DEC 07.7361 5.6 FSE DEC 06.2500 5.2 PLI DEC 07.7431 5.6 BSR DEC 06.4375 5.4 SPC DEC 07.7472 5.5 FSE DEC 06.6146 5.4 MAV DEC 07.75 5.75 TTF DEC 06.6632 5.4 KMI DEC 07.750 5.8 OJR DEC 06.668 5.3 ZAG DEC 07.760 5.5 MUY DEC 06.68 5.4 BLP DEC 07.760 5.4 TUB DEC 06.6875 5.6 GJJ DEC 07.7625 5.5 FSE DEC 06.6910 5.5 HEV DEC 07.7639 5.6 BSR DEC 06.7139 5.6 FSE DEC 07.7653 5.6 FSE DEC 06.7299 5.7 FSE DEC 07.7722 5.6 FSE DEC 06.73 5.70 TTF DEC 07.7917 5.5 AJO DEC 06.7354 5.5 FSE DEC 07.7931 5.4 JCN DEC 06.7375 5.7 TTF DEC 07.9000 5.2 TYS DEC 06.74 5.5 VET DEC 07.9486 5.4 GLG DEC 06.7458 5.6 FSE DEC 07.9542 5.5 MHI DEC 06.7490 5.6 ONJ DEC 07.9583 5.4 WEO DEC 06.75 5.2 RCH DEC 07.9590 5.6 BRJ DEC 06.7509 5.9 GJJ DEC 07.9639 5.5 MKJ DEC 06.7576 5.5 FSE DEC 07.9826 5.6 BRJ DEC 06.760 5.4 OJR DEC 07.9931 5.7 SET DEC 06.851 5.5 RZD DEC 08.0000 5.3 CLQ DEC 06.9771 5.7 BVE DEC 08.0167 5.7 DLA DEC 07.0210 5.2 KMZ DEC 08.0326 5.6 KB DEC 07.0236 5.5 DLA DEC 08.0729 5.5 BEB DEC 07.0325 5.41 CCD CDV DEC 08.118 5.6 LMK DEC 07.0424 5.6 COL DEC 08.1285 5.4 RR DEC 07.0486 5.4 KB DEC 08.673 5.9 TUB DEC 07.1146 5.4 RR DEC 08.6771 5.8 DOH DEC 07.5903 5.4 HRX DEC 08.69 5.8 BLP ---------------------------------------------------------------------------- 2023+43 V503 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V503 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 04.819 <15.6 PYG DEC 07.861 14.6 PYG DEC 06.0556 <14.2 MKJ DEC 07.9771 14.8 BRJ ---------------------------------------------------------------------------- 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 DEC 03.875 <15.5 PYG DEC 07.803 14.0: MUY DEC 04.817 <15.2 PYG DEC 07.858 14.8 PYG DEC 06.0514 13.8 MKJ DEC 07.9778 14.3 BRJ ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AJO - J. AFONSO R. MARTINS, PORTUGAL KMZ - M. KAZMIERCZAK, USA BEB - R. BERG, USA LMK - M. LINNOLT, USA BLP - P. BRLAS, HUNGARY MAV - D. MATSNEV, RUSSIA BRJ - J. BORTLE, USA MHI - H. MENALI, USA BSR - S. BARONI, ITALY MKJ - J. MCKENNA, USA BVE - E. VAN BALLEGOY, NETHERLANDS MUY - E. MUYLLAERT, BELGIUM CDV - D. CORNELL, USA OJR - J. OSORIO, SPAIN CLQ - L. CASON, USA ONJ - J. O'NEILL, IRELAND CMH - M. CHAPELET, FRANCE PLI - L. PARMEGGIANI, ITALY COL - P. COLLINS, USA PYG - G. POYNER, ENGLAND DGP - G. DYCK, USA RCH - C. RAMILLON, FRANCE DLA - A. DILL, USA RMQ - M. RESZELSKI, POLAND DOH - O. DRUCKER, ISRAEL RR - R. ROYER, USA DPV - P. DUBOVSKY, SLOVAKIA RZD - D. RODRIGUEZ, SPAIN FDD - D. FRIDAY, USA SBX - A. SONKA, ROMANIA FMC - M. FRANGEUL, FRANCE SET - C. STEPHAN, USA FSE - S. FOGLIA, ITALY SPC - C. SPELL, NEW ZEALAND GJJ - J. GRNJA, YUGOSLAVIA SRX - R. STUBBINGS, AUSTRALIA GLG - G. GLIBA, USA SXN - M. SIMONSEN, USA GUN - J. GUNTHER, FRANCE TTF - T. TOBAL, SPAIN HEV - Z. HEVESI, HUNGARY TUB - V. TUBOLY, HUNGARY HRI - R. HILL, USA TYS - R. TYSON, USA HRX - R. HARVEY, CANADA VET - M. VERDENET, FRANCE JCN - C. JONES, ENGLAND VFK - F. VOHLA, GERMANY KB - W. KAMINSKI, USA WEO - E. WAAGEN, USA KJH - J. KIRKLAND, USA? ZAG - G. ZAJACZ, HUNGARY KMI - M. KUZMIN, RUSSIA 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! ____________________________________________________________________________