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: 0206+57A TZ PER 0803+62 SU UMA No. 591 0207-63 WX HYI 0939+52 ER UMA March 15, 2000 0741-12 UY PUP 0945+12 X LEO ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 13.80 14.0 VET MAR 14.822 13.4 PYG MAR 14.0299 13.5 BRJ MAR 14.8326 12.7 JCN MAR 14.1243 13.6 HSG MAR 15.1222 13.3 HSG MAR 14.822 13.2 MUY ---------------------------------------------------------------------------- 0207-63 WX HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable WX HYI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 10.4340 14.0 SRX MAR 15.4174 12.4 SRX MAR 14.4354 <14.0 SRX ---------------------------------------------------------------------------- 0741-12 UY PUPPIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UY PUP is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 08.4535 <15.0 NLX MAR 14.4431 14.2 SRX MAR 10.4500 <14.4 SRX MAR 15.1063 13.9: HSG MAR 11.1139 <14.1 HSG MAR 15.1771 13.9 HSG MAR 14.1354 14.0 HSG MAR 15.4292 13.8 SRX ---------------------------------------------------------------------------- 0803+62 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 AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 11.1306 14.6: HSG MAR 14.881 13.6 PYG MAR 12.9118 14.1 JCN MAR 14.929 <13.9 OJR MAR 14.1451 14.1 HSG MAR 15.1868 12.4 HSG MAR 14.8771 13.6 JCN ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 11.1326 <14.7 HSG MAR 14.833 13.2 MUY MAR 12.848 <14.2 MUY MAR 14.883 12.7 PYG MAR 14.0410 13.4 BRJ MAR 15.1889 12.9 HSG MAR 14.1472 13.1 HSG ---------------------------------------------------------------------------- 0945+12 X LEONIS The dwarf nova type cataclysmic variable X LEO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 14.2347 <14.9 HSG MAR 15.1979 12.2 HSG MAR 14.4451 <13.5 SRX MAR 15.4368 12.3 SRX MAR 15.042 12.4 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA OJR - J. OSORIO, SPAIN HSG - G. HANSON II, USA PYG - G. POYNER, ENGLAND JCN - C. JONES, ENGLAND SRX - R. STUBBINGS, AUSTRALIA MUY - E. MUYLLAERT, BELGIUM VET - M. VERDENET, FRANCE NLX - P. NELSON, AUSTRALIA 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! ____________________________________________________________________________