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: 0409-71 VW HYI 0822+25 AT CNC No. 383 0518+00 BI ORI 1612-54 HP NOR January 13, 1999 ---------------------------------------------------------------------------- 0409-71 VW HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable VW HYI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 09.80 13.8 MLF JAN 13.5319 10.6 SRX JAN 12.777 13.1 MLF JAN 13.5507 10.5 SRX JAN 12.860 13.1 MLF JAN 13.5924 10.3 SRX JAN 13.5007 11.3 SRX JAN 13.6931 10.1 SRX ---------------------------------------------------------------------------- 0518+00 BI ORIONIS The dwarf nova type cataclysmic variable BI ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 09.4688 <15.0 SRX JAN 13.4757 14.3 SRX JAN 12.4812 14.6 SRX ---------------------------------------------------------------------------- 0822+25 AT CANCRI The dwarf nova type (Z CAM subclass) cataclysmic variable AT CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 11.009 15.3 PYG JAN 12.5153 13.2 SRX JAN 11.904 14.3 MUY JAN 13.5264 13.2 SRX JAN 11.9208 13.8 POX ---------------------------------------------------------------------------- 1612-54 HP NORMAE The dwarf nova type (Z CAM subclass) cataclysmic variable HP NOR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 22.6764 <13.4 SRX JAN 09.6924 <13.0 SRX DEC 28.7326 <13.2 SRX JAN 13.6500 12.9 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: MLF - L. MONARD, SOUTH AFRICA PYG - G. POYNER, ENGLAND MUY - E. MUYLLAERT, BELGIUM SRX - R. STUBBINGS, AUSTRALIA POX - M. POXON, ENGLAND 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! ____________________________________________________________________________