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: 0547-05 CN ORI 1841+37 AY LYR No. 504 0725+06 SV CMI 1930+31 V795 CYG September 29, 1999 ---------------------------------------------------------------------------- 0547-05 CN ORIONIS The dwarf nova type (Z CAM subclass) cataclysmic variable CN ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 20.7465 14.0 SRX SEP 28.7410 12.6 SRX SEP 26.407 13.7 CCDV OCN ---------------------------------------------------------------------------- 0725+06 SV CANIS MINORIS The dwarf nova type (Z CAM subclass) cataclysmic variable SV CMI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 20.7625 <14.3 SRX SEP 28.7500 13.2 SRX ---------------------------------------------------------------------------- 1841+37 AY LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable AY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 25.0600 18.70 CCDV ZRE SEP 29.1229 14.5 HSG SEP 26.807 <14.2 MUY SEP 29.1660 14.4 HSG SEP 27.0257 <13.9 MKJ SEP 29.1771 13.9 BTH ---------------------------------------------------------------------------- 1930+31 V795 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V795 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 17.910 <15.0 PYG SEP 25.946 <13.1 MGH SEP 20.846 <14.5 MUY SEP 26.813 13.4 MUY SEP 21.772 14.5 KTO SEP 27.839 13.8 MUY SEP 21.806 14.5 KTO SEP 28.1451 13.7 HSG SEP 21.822 <14.2 MUY SEP 29.1250 13.8 HSG SEP 23.825 13.3 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BTH - T. BURROWS, USA MUY - E. MUYLLAERT, BELGIUM HSG - G. HANSON II, USA OCN - S. O'CONNOR, CANADA KTO - T. KINNUNEN, FINLAND PYG - G. POYNER, ENGLAND MGH - H. MCGEE, ENGLAND SRX - R. STUBBINGS, AUSTRALIA MKJ - J. MCKENNA, USA 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! ____________________________________________________________________________