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: 0130+50 KT PER 0939+52 ER UMA No. 512 0139+37 AR AND 1910-33 RY SGR October 13, 1999 0518+00 BI ORI ---------------------------------------------------------------------------- 0130+50 KT PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable KT PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 12.015 14.5 PYG OCT 13.1743 12.8 HSG OCT 13.028 12.8 PYG ---------------------------------------------------------------------------- 0139+37 AR ANDROMEDAE The dwarf nova type cataclysmic variable AR AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 12.010 <15.3 PYG OCT 13.0694 11.6 CGF OCT 12.2257 <14.5 SXN OCT 13.1736 12.2 HSG OCT 12.375 14.9 CCDV OCN OCT 13.9076 12.2 POX OCT 13.026 12.5 PYG ---------------------------------------------------------------------------- 0518+00 BI ORIONIS The dwarf nova type cataclysmic variable BI ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 11.350 16.2 CCDV OCN OCT 12.354 15.3 CCDV OCN OCT 12.2958 <13.7 SXN ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 12.184 13.5 MUY ---------------------------------------------------------------------------- 1910-33 RY SAGITTARII The R CrB type variable RY SGR may be fading, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 05.0701 6.3 BVE OCT 09.0007 6.9 BVE OCT 05.125 6.5 COL OCT 10.0056 7.1 BVE OCT 06.0125 6.6 BVE OCT 11.104 6.7 COL OCT 08.125 6.6 COL OCT 13.1042 7.2 COL ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BVE - E. VAN BALLEGOY, NETHERLANDS OCN - S. O'CONNOR, CANADA CGF - G. CHAPLE JR., USA POX - M. POXON, ENGLAND COL - P. COLLINS, USA PYG - G. POYNER, ENGLAND HSG - G. HANSON II, USA SXN - M. SIMONSEN, USA MUY - E. MUYLLAERT, BELGIUM 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! ____________________________________________________________________________