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: 1058+45 AN UMA 0130+50 KT PER No. 572 0058+40 RX AND 0611+15 CZ ORI February 9, 2000 ---------------------------------------------------------------------------- 1058+45 AN URSAE MAJORIS TO BE OBSERVED WITH EUVE SATELLITE As announced in AAVSO Alert Notice 266, colleagues at Lawrence Livermore National Laboratory will be observing the AM Her-type x-ray magnetic variable AN UMa with the EUVE satellite. Observations will take place between February 9th and 23rd. Our assistance has been requested in obtaining good optical coverage of this star during the observing run and over the coming month. AAVSO "d" and "e" scale standard charts for AN UMa are available on the AAVSO web site: http://www.aavso.org ---------------------------------------------------------------------------- 0058+40 RX ANDROMEDAE The dwarf nova type (Z CAM subclass) cataclysmic variable RX AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 08.1083 13.5 KB FEB 09.0042 11.3 BRJ FEB 08.1111 13.5 HSG FEB 09.0069 11.5 DPL FEB 08.758 13.2 MUY FEB 09.0292 11.5 SXN ---------------------------------------------------------------------------- 0130+50 KT PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable KT PER appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials FEB 07.1111 <14.7 HSG FEB 08.768 <14.0 MUY FEB 08.0743 <14.1 SXN FEB 09.0076 14.3 BRJ FEB 08.1257 <14.1 HSG ---------------------------------------------------------------------------- 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 FEB 08.1222 <15.0 HSG FEB 08.796 <13.9 MUY FEB 08.1806 <14.4 SXN FEB 09.4701 13.8 SRX FEB 08.4833 <14.4 SRX FEB 09.5208 13.7 SRX ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BRJ - J. BORTLE, USA MUY - E. MUYLLAERT, BELGIUM DPL - P. DOMBROWSKI, USA SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA SXN - M. SIMONSEN, USA KB - W. KAMINSKI, 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! ____________________________________________________________________________