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: 0120+31 TY PSC 0854-24 VZ PYX No. 689 0139+37 AR AND 1454+41 TT BOO October 30, 2000 0207-63 WX HYI 2043+41 V516 CYG 0217+70 AM CAS ---------------------------------------------------------------------------- 0120+31 TY PISCIUM The dwarf nova type (SU UMA subclass) cataclysmic variable TY PSC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 23.965 <15.2 RMQ OCT 28.945 12.2 MGH OCT 24.928 <14.3 OJR OCT 29.78 11.5 VET OCT 26.942 <14.3 OJR OCT 29.797 12.1 OJR OCT 28.812 12.3 OJR ---------------------------------------------------------------------------- 0139+37 AR ANDROMEDAE The dwarf nova type cataclysmic variable AR AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 26.0611 <14.3 DKS OCT 29.3361 12.0 VPJ OCT 26.945 <14.3 OJR OCT 29.78 12.2 VET OCT 28.854 12.4 OJR OCT 29.809 12.5 OJR ---------------------------------------------------------------------------- 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 OCT 25.4388 14.5 WPX OCT 27.769 12.8 PEX OCT 25.761 <14.0 PEX OCT 29.4430 12.4 WPX OCT 27.444 14.1 SRX OCT 29.443 12.3: NLX OCT 27.653 13.7 SRX OCT 29.753 12.9 MLF OCT 27.667 13.7 SRX OCT 29.857 12.7 MLF ---------------------------------------------------------------------------- 0217+70 AM CASSIOPEIAE The dwarf nova type (Z CAM subclass) cataclysmic variable AM CAS appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 22.828 15.2 RMQ OCT 26.936 <14.2 OJR OCT 22.9118 14.7 DPV OCT 28.819 13.8 OJR OCT 23.8646 14.8: DPV OCT 29.806 13.9 OJR OCT 23.937 14.6 RMQ ---------------------------------------------------------------------------- 0854-24 VZ PYXIDIS The dwarf nova type (SU UMA subclass) cataclysmic variable VZ PYX appears to have undergone an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 22.820 <13.8 PEX OCT 27.636 13.8 SRX OCT 23.799 <13.8 PEX OCT 27.665 13.8 SRX OCT 25.818 12.5 PEX OCT 27.821 <13.8 PEX ---------------------------------------------------------------------------- 1454+41 TT BOOTIS The dwarf nova type (SU UMA subclass) cataclysmic variable TT BOO appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 21.731 <14.5 RMQ OCT 23.767 <13.9 MUY OCT 22.756 <13.9 RMQ OCT 23.781 <13.9 MGH OCT 23.7500 <13.9 DPV OCT 29.7194 14.1 DPV ---------------------------------------------------------------------------- 2043+41 V516 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V516 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 22.809 <15.2 PYG OCT 26.0236 13.9 BRJ OCT 23.917 <14.7 RMQ ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA PEX - A. PEARCE, AUSTRALIA DKS - S. DVORAK, USA PYG - G. POYNER, ENGLAND DPV - P. DUBOVSKY, SLOVAKIA RMQ - M. RESZELSKI, POLAND MGH - H. MCGEE, ENGLAND SRX - R. STUBBINGS, AUSTRALIA MLF - L. MONARD, SOUTH AFRICA VET - M. VERDENET, FRANCE MUY - E. MUYLLAERT, BELGIUM VPJ - J. VAN POUCKER, USA NLX - P. NELSON, AUSTRALIA WPX - P. WILLIAMS, AUSTRALIA OJR - J. OSORIO, SPAIN 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! ____________________________________________________________________________