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 * * * http://www.aavso.org Subject: 0106+34 FN AND 0833-47 BB VEL No. 377 0124+57 KU CAS 0945-23 AG HYA December 21, 1998 0501-04 AQ ERI 0959+68 CH UMA 0523-03 V1159 ORI 1934+30 EM CYG 0822+25 AT CNC ---------------------------------------------------------------------------- 0106+34 FN ANDROMEDAE The dwarf nova type (UG subclass) cataclysmic variable FN AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 18.1 <14.7 CGF DEC 20.2479 13.0 SQN DEC 18.991 13.2 CGF DEC 20.769 13.2 MUY DEC 19.0118 13.7 BRJ ---------------------------------------------------------------------------- 0124+57 KU CASSIOPEIAE The dwarf nova type (SS CYG subclass) cataclysmic variable KU CAS may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 19.1120 20.61 CCDV ZRE DEC 20.773 <13.8 MUY DEC 20.2639 14.0: SQN ---------------------------------------------------------------------------- 0501-04 AQ ERIDANI The dwarf nova type (SU UMA subclass) cataclysmic variable AQ ERI underwent an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 17.2500 <15.3 HSG DEC 18.837 13.3: MUY DEC 17.4729 <15.3 SRX DEC 19.030 13.5 CGF DEC 18.1 <14.2 CGF DEC 19.1694 13.4 DKS DEC 18.332 13.5 HJN DEC 20.5118 15.0 SRX DEC 18.4917 13.2 SRX DEC 20.9486 <14.2 BMM ---------------------------------------------------------------------------- 0523-03 V1159 ORIONIS The dwarf nova type (SU UMA subclass) cataclysmic variable V1159 ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 17.2514 14.1 HSG DEC 18.4819 12.8 SRX DEC 17.4708 12.9 SRX DEC 19.1743 13.3 DKS DEC 18.342 13.2 HJN DEC 20.5139 13.1 SRX ---------------------------------------------------------------------------- 0822+25 AT CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable AT CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 16.5674 <13.5 SRX DEC 19.1194 12.9 MKJ DEC 16.87 <14.0 KTO DEC 20.5757 13.0 SRX DEC 18.6646 13.5 SRX ---------------------------------------------------------------------------- 0833-47 BB VELORUM The dwarf nova type (UG subclass) cataclysmic variable BB VEL may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 18.5319 15.0 SRX DEC 20.5215 14.0 SRX DEC 18.5319 15.0 SRX ---------------------------------------------------------------------------- 0945-23 AG HYDRAE The dwarf nova type (UG subclass) cataclysmic variable AG HYA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 11.5792 <15.0 SRX DEC 18.6875 15.2 SRX DEC 11.5792 <15.0 SRX DEC 20.5375 14.3 SRX DEC 18.6521 15.2 SRX ---------------------------------------------------------------------------- 0959+68 CH URSAE MAJORIS The dwarf nova type (UG subclass) cataclysmic variable CH UMA may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 11.4688 14.7 HSG DEC 16.2847 <13.7 SQN DEC 12.0333 13.8 BRJ DEC 17.2667 14.7: HSG DEC 12.3889 <14.0 SQN DEC 17.2875 <14.0 SQN DEC 15.0278 14.1 BRJ DEC 19.0347 13.9 BRJ DEC 15.3021 <14.0 SQN DEC 20.2694 <14.0 SQN DEC 16.0306 14.1 BRJ ---------------------------------------------------------------------------- 1934+30 EM CYGNI The dwarf nova type (Z CAM subclass) cataclysmic variable EM CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 17.1285 13.4 HSG DEC 19.0000 12.4 BRJ DEC 17.8 12.7 VET DEC 19.64 12.5 KTO DEC 18.946 12.7 CGF DEC 19.953 12.7 CGF ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BMM - M. BIESMANS, BELGIUM MKJ - J. MCKENNA, USA BRJ - J. BORTLE, USA MUY - E. MUYLLAERT, BELGIUM CGF - G. CHAPLE JR., USA SQN - L. SHAW, USA DKS - S. DVORAK, USA SRX - R. STUBBINGS, AUSTRALIA HJN - J. HERS, SOUTH AFRICA VET - M. VERDENET, FRANCE HSG - G. HANSON II, USA ZRE - R. ZISSELL, USA KTO - T. KINNUNEN, FINLAND 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 Kerriann Malatesta, 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! ____________________________________________________________________________