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: 0611+15 CZ ORI 1051+50 CY UMA No. 711 December 15, 2000 ---------------------------------------------------------------------------- 0611+15 CZ ORIONIS The dwarf nova type cataclysmic variable CZ ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 07.742 <15.0 PEX DEC 13.494 <12.2 SRX DEC 09.3597 <13.9 SXN DEC 15.520 12.8 SRX DEC 09.505 <12.4 SRX DEC 15.555 12.8 SRX ---------------------------------------------------------------------------- 1051+50 CY URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable CY UMA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials DEC 07.1299 <14.1 DPV DEC 14.906 12.5 MUY ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: DPV - P. DUBOVSKY, SLOVAKIA SRX - R. STUBBINGS, AUSTRALIA MUY - E. MUYLLAERT, BELGIUM SXN - M. SIMONSEN, USA PEX - A. PEARCE, 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! ____________________________________________________________________________