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: UW Cen, AB Dra, FO Per No. 263 February 20, 1998 ________________________________________________________________________________ UW CENTAURI The R CrB type variable UW Cen may be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 29.6417 <15.0 SRX FEB 16.4799 14.5 SRX JAN 31.9 <13.4 MLF FEB 18.5215 14.7 SRX FEB 01.5236 15.0 SRX FEB 19.5361 14.6 SRX FEB 03.5938 15.1 SRX ----------------------------------------------------------------------------- AB DRACONIS The dwarf nova type (Z Cam subclass) cataclysmic variable AB Dra appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 17.1028 14.2: HSG FEB 17.779 14.0 PYG FEB 19.09 12.8 DGP ----------------------------------------------------------------------------- FO PERSEI The dwarf nova type cataclysmic variable FO Per is in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 17.1319 <15.0 HSG FEB 19.09 13.4 DGP FEB 19.8 13.9 VET ----------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DGP - G. Dyck, USA PYG - G. Poyner, England HSG - G. Hanson, USA SRX - R. Stubbings, Australia MLF - B. Monard, South Africa VET - M. Verdenet, France 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 ________________________________________________________________________________ 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! ______________________________________________________________________________