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: 0139+37 AR AND 0939+52 ER UMA No. 409 0206+57A TZ PER 0945+34 RZ LMI March 16, 1999 0605+47 SS AUR ---------------------------------------------------------------------------- 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 MAR 10.1097 <14.5 HSG MAR 16.1174 12.1 HSG MAR 15.807 12.0 MUY ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 13.900 14.7 PYG MAR 15.841 13.1 PYG MAR 14.801 <13.6 MUY MAR 16.0893 13.0: BEB MAR 15.812 12.8 MUY MAR 16.1264 13.4 HSG ---------------------------------------------------------------------------- 0605+47 SS AURIGAE The dwarf nova type cataclysmic variable SS AUR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 13.941 15.2 PYG MAR 15.957 13.2 PYG MAR 14.0740 15.10 CCDV ZRE MAR 16.0389 13.2 KMA MAR 14.7993 <13.2 MCU MAR 16.0685 12.9 BEB MAR 14.816 <13.9 MUY MAR 16.0880 13.30 CCDV ZRE MAR 14.84 14.5 KTO MAR 16.1361 13.1 HSG MAR 15.1229 <13.8 MDP MAR 16.1514 12.8 MDP MAR 15.822 13.0 OJR MAR 16.221 13.1 MRV MAR 15.827 13.7 MUY ---------------------------------------------------------------------------- 0939+52 ER URSAE MAJORIS The dwarf nova type (SU UMA subclass) cataclysmic variable ER UMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 13.969 15.2 PYG MAR 15.863 13.5 PYG MAR 14.063 <14.1 MGH MAR 15.875 13.8 MUY MAR 14.861 <14.2 MUY MAR 16.1528 13.4 HSG ---------------------------------------------------------------------------- 0945+34 RZ LEONIS MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable RZ LMI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 09.0528 15.1: BRJ MAR 15.879 14.4 PYG MAR 10.1486 <14.1 HSG MAR 15.885 <14.1 MUY MAR 13.967 <14.1 PYG MAR 16.1639 14.0 HSG MAR 14.877 <14.1 MUY ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA MGH - H. MCGEE, ENGLAND BRJ - J. BORTLE, USA MRV - R. MODIC, USA HSG - G. HANSON II, USA MUY - E. MUYLLAERT, BELGIUM KMA - M. KOMOROUS, CANADA OJR - J. OSORIO, SPAIN KTO - T. KINNUNEN, FINLAND PYG - G. POYNER, ENGLAND MCU - C. MATYAS, ROMANIA ZRE - R. ZISSELL, USA MDP - P. MCDONALD, CANADA 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! ____________________________________________________________________________