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: 0640-16 HL CMA No. 418 0804+28 YZ CNC April 5, 1999 1220-45 V373 CEN ---------------------------------------------------------------------------- 0640-16 HL CANIS MAJORIS The dwarf nova type cataclysmic variable HL CMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 29.840 <13.7 PYG APR 05.0881 11.7 BEB APR 03.4493 <12.5 SRX APR 05.4042 11.6 SRX APR 04.4701 11.8 SRX ---------------------------------------------------------------------------- 0804+28 YZ CANCRI The dwarf nova type (SU UMA subclass) cataclysmic variable YZ CNC is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials APR 02.837 <13.6 MUY APR 05.0655 12.2 BEB APR 03.4361 <12.5 SRX APR 05.1710 12.58 CCDV ZRE APR 04.0930 12.4 BEB APR 05.4028 12.3 SRX APR 04.4590 12.5 SRX ---------------------------------------------------------------------------- 1220-45 V373 CENTAURI The dwarf nova type cataclysmic variable V373 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 29.793 <15.0 PEX APR 04.796 13.0 PEX APR 03.4750 <13.6 SRX APR 05.4243 13.6 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA PYG - G. POYNER, ENGLAND MUY - E. MUYLLAERT, BELGIUM SRX - R. STUBBINGS, AUSTRALIA PEX - A. PEARCE, AUSTRALIA ZRE - R. ZISSELL, USA 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! ____________________________________________________________________________