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: FN Sgr, CI UMa, AB Dra, No. 29 SX LMi, CY Lyr, X Leo June 6, 1996 ________________________________________________________________________________ FN SAGITTARII The symbiotic star FN Sgr continues to fade dramatically (see News Flash No. 27) from its most recent outburst as indicated by the following observations: AAVSO Observer UT Mag. Initials MAY 31.162 <13.0 OB JUN 6.1632 14.5 BRJ FN Sgr is presently nearly one magnitude fainter than ever before reported to the AAVSO. The earliest observations of this star in the AAVSO International Database date from September 1968. ----------------------------------------------------------------------------- CI URSAE MAJORIS The dwarf nova type cataclysmic variable CI UMa is in outburst as indicated by the following observations: AAVSO Observer UT Mag. Initials JUN 5.2167 <13.5 BTH JUN 6.1340 14.3 BRJ JUN 6.2160 13.8 BTH The most recent outbursts of CI UMa reported to the AAVSO occurred 16 May 1995, 5 August 1995, and 27 September 1995. Coverage in the AAVSO International Database since September is quite good, but there are a number of 10-15 day gaps in the observations. ----------------------------------------------------------------------------- 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 JUN 5.0021 14.4 BMM JUN 6.142 12.6 SWT JUN 5.2646 <13.5 BTH JUN 6.1528 12.5 BRJ JUN 6.0104 12.8 BMM JUN 6.2570 12.8 BTH ----------------------------------------------------------------------------- SX LEONIS MINORIS The dwarf nova type (SU UMa subclass) cataclysmic variable SX LMi appears to be fading from outburst (see News Flash No. 28) as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 4.9403 13.0 PYG JUN 6.167 14.0 YRK JUN 6.073 13.3 SWT JUN 6.2208 13.5 BTH JUN 6.1000 13.8 SCE ----------------------------------------------------------------------------- CY LYRAE The apparent outburst of the dwarf nova type (SS Cyg subclass) cataclysmic variable CY Lyr (see News Flash No. 28) has been confirmed as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUN 5.967 13.1 DPA JUN 6.1438 13.2 BRJ JUN 6.0528 12.9 BMM JUN 6.1639 13.5 SCE JUN 6.111 13.0 SWT JUN 6.2493 13.3 BTH JUN 6.1271 13.1 MKJ ----------------------------------------------------------------------------- X LEONIS The dwarf nova type (SS Cyg subclass) cataclysmic variable X Leo appears to be in outburst as indicated by the following observations: AAVSO Observer UT Mag. Initials JUN 4.1660 <13.5 HSG JUN 5.2340 <12.4 SQN JUN 6.064 12.4: SWT ----------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BMM - M. Biesmans, Belgium OB - D. Overbeek, South Africa BRJ - J. Bortle, USA PYG - G. Poyner, England BTH - T. Burrows, USA SCE - C. Scovil, USA DPA - A. Diepvens, Belgium SQN - L. Shaw, USA HSG - G. Hanson, USA SWT - R. Stewart, USA MKJ - J. McKenna, USA YRK - D. York, USA Please monitor these stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Rebecca Pellock, Technical Assistant in the absence 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! ________________________________________________________________________________