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: 0130+50 KT PER 1906+29 V419 LYR No. 485 1317-41 V803 CEN 1953+77 AB DRA August 23, 1999 1552+72 SS UMI 2103+36 V1060 CYG 1813+49 AM HER 2125-03 VZ AQR 1817+38 V391 LYR ---------------------------------------------------------------------------- 0130+50 KT PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable KT PER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 21.913 <13.8: MUY AUG 22.85 11.8 KTO ---------------------------------------------------------------------------- 1317-41 V803 CENTAURI The cataclysmic variable V803 CEN appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 17.4118 15.0 SRX AUG 22.3924 <13.9 SRX AUG 18.71 <13.4 MLF AUG 22.700 13.0 MLF AUG 20.3778 <13.9 SRX AUG 22.725 13.2 MLF ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 19.999 <15.4 PYG AUG 21.951 15.2 PYG AUG 21.860 <14.2 MUY ---------------------------------------------------------------------------- 1813+49 AM HERCULIS The cataclysmic variable AM HER appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 19.1640 14.8 CCDV ZRE AUG 21.87 13.6 VET AUG 19.87 14.4 VET AUG 23.1493 13.7 KMA AUG 19.996 14.7 PYG AUG 23.186 13.9 OCN ---------------------------------------------------------------------------- 1817+38 V391 LYRAE The dwarf nova type (Z CAM subclass) cataclysmic variable V391 LYR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 18.87 <15.2 KTO AUG 22.83 14.7 KTO ---------------------------------------------------------------------------- 1906+29 V419 LYRAE The dwarf nova type (Z CAM subclass) cataclysmic variable V419 LYR appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials AUG 22.84 14.9 KTO According to the AAVSO International Database this star is fainter than visual magnitude 15.4 during quiescence. ---------------------------------------------------------------------------- 1953+77 AB DRACONIS The dwarf nova type (Z CAM subclass) cataclysmic variable AB DRA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 20.8799 15.0 JCN AUG 21.853 <14.0 MUY AUG 20.899 <14.0 MUY AUG 22.84 13.9 KTO ---------------------------------------------------------------------------- 2103+36 V1060 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V1060 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 20.030 <15.6 PYG AUG 22.044 13.4 MGH ---------------------------------------------------------------------------- 2125-03 VZ AQUARII The dwarf nova type cataclysmic variable VZ AQR is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 17.4528 <14.7 SRX AUG 20.6660 13.5 SRX AUG 18.87 13.2 VET AUG 20.90 14.3 VET AUG 18.90 13.0 VET AUG 20.936 <13.7 MUY AUG 19.89 13.3 VET AUG 21.898 <13.7 MUY AUG 19.919 13.6 MUY ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: JCN - C. JONES, ENGLAND OCN - S. O'CONNOR, CANADA KMA - M. KOMOROUS, CANADA PYG - G. POYNER, ENGLAND KTO - T. KINNUNEN, FINLAND SRX - R. STUBBINGS, AUSTRALIA MGH - H. MCGEE, ENGLAND VET - M. VERDENET, FRANCE MLF - L. MONARD, SOUTH AFRICA ZRE - R. ZISSELL, USA MUY - E. MUYLLAERT, BELGIUM 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! ____________________________________________________________________________