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: 0207-63 WX HYI 1207-43 MU CEN No. 570 0243+37 PY PER 1344+08 CR BOO February 7, 2000 0541+28 FS AUR 1804+67 EX DRA 0547-05 CN ORI 1953+77 AB DRA 1133+03 T LEO ---------------------------------------------------------------------------- 0207-63 WX HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable WX HYI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 05.5306 14.2 NLX FEB 07.4549 12.3 SRX FEB 06.4771 14.0 SRX FEB 07.5417 12.2 NLX ---------------------------------------------------------------------------- 0243+37 PY PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable PY PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 29.9920 16.27 CCDV ZRE FEB 06.0243 14.2 CGF FEB 02.791 <13.9 MUY FEB 06.2326 14.1 SXN FEB 05.1549 14.0 SXN FEB 06.9854 14.2 CGF FEB 05.8097 14.20 CCD DRG FEB 07.0139 14.6 BRJ FEB 06.0174 14.4 BRJ ---------------------------------------------------------------------------- 0541+28 FS AURIGAE The dwarf nova type cataclysmic variable FS AUR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 29.1132 <14.9 SXN FEB 06.2611 <14.1 SXN FEB 05.2312 <14.1 SXN FEB 06.984 14.5 PYG ---------------------------------------------------------------------------- 0547-05 CN ORIONIS The dwarf nova type (Z CAM subclass) cataclysmic variable CN ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 03.1035 <14.6 HSG FEB 06.4847 12.8 SRX FEB 03.963 <14.0 OJR FEB 06.956 12.9 PYG FEB 04.0903 14.0 KB FEB 06.9979 12.9 CGF FEB 04.93 14.3 VET FEB 07.0090 12.8 DPL FEB 04.970 <14.0 OJR FEB 07.0215 12.6 BRJ FEB 05.4965 13.3 SRX FEB 07.0688 12.7 DKS FEB 05.5618 13.5 NLX FEB 07.0944 12.8 KB FEB 05.866 <14.0 OJR FEB 07.1174 12.7 HSG FEB 06.0250 13.2 BRJ FEB 07.4667 12.8 SRX FEB 06.1062 13.1 KB FEB 07.5035 12.7 NLX FEB 06.1660 13.1 DKS ---------------------------------------------------------------------------- 1133+03 T LEONIS The dwarf nova type (SU UMA subclass) cataclysmic variable T LEO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 03.2604 <14.6 HSG FEB 07.010 11.4 PYG FEB 05.5479 <14.0 SRX FEB 07.2500 11.1 HSG FEB 06.3361 <14.0 SXN FEB 07.4972 11.1 HSG FEB 06.4285 14.3 HSG FEB 07.5257 11.4 SRX FEB 06.5417 13.0 SRX ---------------------------------------------------------------------------- 1207-43 MU CENTAURI The dwarf nova type (SS CYG subclass) cataclysmic variable MU CEN appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 03.5681 14.6 SRX FEB 05.804 14.0 PEX FEB 04.792 14.3 PEX FEB 06.5278 13.7 SRX FEB 05.5333 14.2 SRX FEB 07.5132 13.1 SRX ---------------------------------------------------------------------------- 1344+08 CR BOOTIS The dwarf nova type (IBWD subclass) cataclysmic variable CR BOO appears to be active, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 06.4528 <15.4 HSG FEB 07.5035 14.4 HSG ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing 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 JAN 29.4069 17.0 CCDV ZRE FEB 06.4354 14.0 HSG JAN 30.2675 15.2 CCDV ZRE FEB 06.4611 13.9 HSG FEB 02.0938 14.8: HSG FEB 06.9958 13.0 BRJ FEB 03.0931 14.8: HSG FEB 07.1007 14.5: HSG FEB 03.223 <14.5 MUY FEB 07.1146 14.0 HSG FEB 05.9979 13.5 BRJ FEB 07.4986 13.3 HSG ---------------------------------------------------------------------------- 1953+77 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 FEB 03.0931 13.9 HSG FEB 06.945 13.0 PYG FEB 03.796 13.4 OJR FEB 06.9903 12.7 CGF FEB 05.9993 13.7 BRJ FEB 06.9972 12.8 BRJ FEB 06.0042 13.2 CGF FEB 07.0993 12.8 HSG FEB 06.4563 13.0 HSG FEB 07.4993 12.6 HSG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA NLX - P. NELSON, AUSTRALIA CGF - G. CHAPLE JR., USA OJR - J. OSORIO, SPAIN DKS - S. DVORAK, USA PEX - A. PEARCE, AUSTRALIA DPL - P. DOMBROWSKI, USA PYG - G. POYNER, ENGLAND DRG - R. DIETHELM, SWITZERLAND SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA SXN - M. SIMONSEN, USA KB - W. KAMINSKI, USA VET - M. VERDENET, FRANCE MUY - E. MUYLLAERT, BELGIUM 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! ____________________________________________________________________________