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 1617-55 IK NOR No. 664 0401+50 FO PER 1925+42 V1504 CYG August 28, 2000 0409-71 VW HYI 2053+25 VW VUL 0501-04 AQ ERI 2253+10 V368 PEG 0547-05 CN ORI 2335+12 HX PEG ---------------------------------------------------------------------------- 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 AUG 22.597 14.8 SRX AUG 27.458 12.5 SRX AUG 26.426 14.2 SRX AUG 27.563 12.4 SRX AUG 26.590 13.7 SRX AUG 28.517 13.0 SRX ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 23.986 <14.5 RMQ AUG 25.990 13.8 RMQ AUG 24.965 <14.1 MUY AUG 26.972 13.6 OJR AUG 25.2813 13.6 SXN AUG 26.995 14.2 RMQ AUG 25.940 13.8: MUY AUG 28.10 14.5 VET ---------------------------------------------------------------------------- 0409-71 VW HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable VW HYI is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 25.490 13.8 SRX AUG 26.591 9.5 SRX AUG 26.1 <12.4 SJX AUG 27.557 9.6 SRX AUG 26.411 10.3 SRX AUG 28.100 10.4 SJX AUG 26.471 10.1 SRX AUG 28.491 10.4 SRX ---------------------------------------------------------------------------- 0501-04 AQ ERIDANI The dwarf nova type (SU UMA subclass) cataclysmic variable AQ ERI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 03.777 <14.0 SRX AUG 28.11 13.7 VET AUG 25.703 13.4 SRX ---------------------------------------------------------------------------- 0547-05 CN ORIONIS The dwarf nova type (Z CAM subclass) cataclysmic variable CN ORI appears to be in outburst, as indicated by the following observation: AAVSO Observer UT Mag. Initials AUG 25.714 12.6 SRX ---------------------------------------------------------------------------- 1617-55 IK NORMAE The dwarf nova type cataclysmic variable IK NOR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 25.495 15.1 SRX AUG 27.592 14.4 SRX AUG 26.420 15.0 SRX AUG 28.483 13.6 SRX AUG 27.454 14.8 SRX ---------------------------------------------------------------------------- 1925+42 V1504 CYGNI The dwarf nova type (SU UMA subclass) cataclysmic variable V1504 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 25.026 <15.5 PYG AUG 26.856 <14.5 MUY AUG 25.1700 16.6 CCD COO AUG 26.908 15.1 RMQ AUG 25.915 <15.2 RMQ AUG 26.960 14.7 PYG AUG 26.2600 14.26 CCD COO AUG 27.2400 14.76 CCD COO ---------------------------------------------------------------------------- 2053+25 VW VULPECULAE The dwarf nova type cataclysmic variable VW VUL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 25.013 15.2 PYG AUG 26.888 14.0 RMQ AUG 25.1556 <14.2 SXN AUG 26.947 13.6 PYG AUG 25.888 14.2 RMQ AUG 26.970 13.4 OJR ---------------------------------------------------------------------------- 2253+10 V368 PEGASI The dwarf nova type (SU UMA subclass) cataclysmic variable V368 PEG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 22.604 <14.4 SRX AUG 26.905 12.7 RMQ AUG 23.025 <14.7 PYG AUG 27.004 13.4 PYG AUG 25.058 <15.5 PYG AUG 27.467 13.0 SRX AUG 26.478 13.8 SRX AUG 28.515 13.0 SRX AUG 26.885 12.5 MUY ---------------------------------------------------------------------------- 2335+12 HX PEGASI The dwarf nova type cataclysmic variable HX PEG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials AUG 27.006 <14.8 PYG AUG 28.529 13.0 SRX AUG 27.608 <14.2 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: COO - L. COOK, USA SJX - J. SMIT, SOUTH AFRICA MUY - E. MUYLLAERT, BELGIUM SRX - R. STUBBINGS, AUSTRALIA OJR - J. OSORIO, SPAIN SXN - M. SIMONSEN, USA PYG - G. POYNER, ENGLAND VET - M. VERDENET, FRANCE RMQ - M. RESZELSKI, POLAND 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! ____________________________________________________________________________