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: 0006-12 WW CET 0547-05 CN ORI No. 426 0409-71 VW HYI 0741-12 UY PUP April 23, 1999 0524-03 V1159 ORI ---------------------------------------------------------------------------- 0006-12 WW CETI The dwarf nova type (possible Z CAM subclass) cataclysmic variable WW CET appears to be in outburst, as indicated by the following observation: AAVSO Observer UT Mag. Initials APR 22.8181 11.8 SRX ---------------------------------------------------------------------------- 0409-71 VW HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable VW HYI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 19.4486 13.9 WPX APR 22.4174 12.9 SRX APR 20.4569 13.7 WPX APR 22.7174 12.6 SRX APR 21.3958 13.5 SRX APR 22.7944 12.6 SRX ---------------------------------------------------------------------------- 0524-03 V1159 ORIONIS The dwarf nova type (SU UMA subclass) cataclysmic variable V1159 ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 20.1382 14.4: HSG APR 22.3979 13.8 SRX APR 21.3813 <13.9 SRX ---------------------------------------------------------------------------- 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 APR 18.3778 <13.8 SRX APR 20.4035 13.0 SRX APR 19.3944 13.8 SRX APR 21.3799 12.8 SRX APR 20.1375 13.8: HSG APR 22.3986 12.6 SRX ---------------------------------------------------------------------------- 0741-12 UY PUPPIS The dwarf nova type (possible Z CAM subclass) cataclysmic variable UY PUP appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 20.4063 <14.5 SRX APR 22.4049 14.4 SRX APR 21.3931 14.8 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: HSG - G. HANSON II, USA WPX - P. WILLIAMS, NEW ZEALAND SRX - R. STUBBINGS, 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! ____________________________________________________________________________