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 And, YZ Cnc, SV CMi, KU Cas, EX Dra, No. 266 CH Her, AG Hya, AY Lyr, V1159 Ori, February 27, 1998 BV Pup, SU UMa ________________________________________________________________________________ FN ANDROMEDAE The dwarf nova type cataclysmic variable FN And appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 24.817 <15.5 PYG FEB 27.0569 13.5 BRJ ----------------------------------------------------------------------------- YZ CANCRI The dwarf nova type (SU UMa subclass) cataclysmic variable YZ Cnc is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 23.1100 15.19 CCDV ZRE FEB 27.01 12.3 DGP FEB 24.909 14.6 PYG FEB 27.1090 12.2 MKJ FEB 25.4285 <14.0 SRX FEB 27.1950 12.58 CCDV ZRE FEB 26.01 <13.0 GRL FEB 27.4563 12.2 SRX FEB 27.01 12.5 GRL ----------------------------------------------------------------------------- SV CANIS MINORIS The dwarf nova type (Z Cam subclass) cataclysmic variable SV CMi is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 23.0715 <13.8 MKJ FEB 27.0771 13.3 BRJ FEB 25.5285 <14.5 SRX FEB 27.1014 13.0 MKJ FEB 27.01 13.5 DGP FEB 27.4507 13.2 SRX ----------------------------------------------------------------------------- KU CASSIOPEIAE The dwarf nova type (SS Cyg subclass) cataclysmic variable KU Cas is in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 24.839 <15.3 PYG FEB 27.01 14.1 DGP FEB 27.0625 13.4 BRJ ----------------------------------------------------------------------------- EX DRACONIS The dwarf nova type cataclysmic variable EX Dra is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 22.090 15.3 PYG FEB 27.3676 14.1 CCDV ZRE FEB 23.045 14.9 PYG FEB 27.5285 13.6 HSG FEB 27.0521 13.4 BRJ ----------------------------------------------------------------------------- CH HERCULIS The dwarf nova type cataclysmic variable CH Her appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 22.191 <15.5 PYG FEB 27.5181 14.8 HSG ----------------------------------------------------------------------------- AG HYDRAE The dwarf nova type 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 FEB 17.4806 <15.2 SRX FEB 27.4646 14.5 SRX FEB 25.5521 <15.0 SRX FEB 27.4875 14.5 SRX ----------------------------------------------------------------------------- AY LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable AY Lyr appears to be in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 22.156 <15.3 PYG FEB 27.5243 14.9 HSG ----------------------------------------------------------------------------- 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 FEB 24.844 14.4 PYG FEB 27.1040 13.98 CCDV ZRE FEB 25.5576 14.6 SRX FEB 27.4465 13.8 SRX ----------------------------------------------------------------------------- BV PUPPIS The dwarf nova type (SS Cyg subclass) cataclysmic variable BV Pup appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 25.5326 15.2 SRX FEB 27.4819 14.4 SRX FEB 27.4674 14.5 SRX FEB 27.4931 14.4 SRX ----------------------------------------------------------------------------- SU URSAE MAJORIS The dwarf nova type (SU UMa subclass prototype) cataclysmic variable SU UMa is in outburst, as indicated by the following observations: AAVSO Observer UT Mag. Initials FEB 24.865 14.5 PYG FEB 27.1139 13.7 MKJ FEB 27.4813 13.0 HSG ----------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. Bortle, USA MKJ - J. McKenna, USA DGP - G. Dyck, USA PYG - G. Poyner, England GRL - B. Granslo, Norway SRX - R. Stubbings, Australia HSG - G. Hanson, 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 ________________________________________________________________________________ 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! ______________________________________________________________________________