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: 0523-03 V1159 ORI 1120-35 V442 CEN No. 407 0945+12 X LEO 1951-09 UU AQL March 12, 1999 ---------------------------------------------------------------------------- 0523-03 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 MAR 10.4465 14.8 SRX MAR 11.4576 13.7 SRX MAR 10.822 <14.5 PYG ---------------------------------------------------------------------------- 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 11.5090 14.9: SRX MAR 12.3013 13.3 COO MAR 12.1236 <13.3 BEB MAR 12.4931 12.4 SRX ---------------------------------------------------------------------------- 1120-35 V442 CENTAURI The dwarf nova type (SS CYG subclass) cataclysmic variable V442 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 10.800 <15.3 PEX MAR 11.764 12.8 PEX MAR 10.8 <13.2 OB MAR 12.051 12.2 OB MAR 11.4861 13.6 SRX MAR 12.5028 12.4 SRX MAR 11.6986 13.0 SRX ---------------------------------------------------------------------------- 1951-09 UU AQUILAE The dwarf nova type cataclysmic variable UU AQL appears to be in outburst, as indicated by the following observation: AAVSO Observer UT Mag. Initials MAR 11.7271 11.5 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA PEX - A. PEARCE, AUSTRALIA COO - L. COOK, USA PYG - G. POYNER, ENGLAND OB - M. OVERBEEK, SOUTH AFRICA 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! ____________________________________________________________________________