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: 1133+03 T LEO No. 475 1428-39 V854 CEN August 2, 1999 ---------------------------------------------------------------------------- 1133+03 T LEONIS The dwarf nova type (SU UMA subclass) cataclysmic variable T LEO appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 09.3639 <14.4 SRX AUG 01.3708 10.8 SRX JUL 25.3701 <12.0 SRX ---------------------------------------------------------------------------- 1428-39 V854 CENTAURI The R CrB type variable V854 CEN is brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JUL 17.78 14.5 MLF JUL 27.4910 13.2 SRX JUL 25.4118 14.0 SRX JUL 30.705 11.5 OB JUL 26.4097 13.5 SRX JUL 31.71 11.3 MLF ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: MLF - L. MONARD, SOUTH AFRICA SRX - R. STUBBINGS, AUSTRALIA OB - M. OVERBEEK, SOUTH AFRICA 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 on behalf of 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! ____________________________________________________________________________