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: 0058+40 RX AND 1640+25 AH HER No. 511 0109+37 FO AND 1911-00 FO AQL October 12, 1999 0206+57A TZ PER 2043+41 V516 CYG 0401+50 FO PER 2053+25 VW VUL 0409-71 VW HYI 2131+40 V630 CYG 0611+15 CZ ORI 2209+12 RU PEG 1612-54 HP NOR 2318+17 IP PEG ---------------------------------------------------------------------------- 0058+40 RX ANDROMEDAE The dwarf nova type (Z CAM subclass) cataclysmic variable RX AND appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 12.0194 13.7 MDP OCT 12.830 12.5 SPK OCT 12.2153 14.0 SXN ---------------------------------------------------------------------------- 0109+37 FO ANDROMEDAE The dwarf nova type (SU UMA subclass) cataclysmic variable FO AND is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 08.2150 17.39 CCDV ZRE OCT 12.2215 <14.7 SXN OCT 11.1799 14.9 HSG OCT 12.2410 15.33 CCDV ZRE OCT 12.007 <15.3 PYG OCT 12.329 15.6 CCDV OCN OCT 12.1868 <15.4 HSG OCT 120417 15.2 BRJ ---------------------------------------------------------------------------- 0206+57A TZ PERSEI The dwarf nova type (Z CAM subclass) cataclysmic variable TZ PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 06.8896 <14.4 JCN OCT 12.0465 12.8 BRJ OCT 07.1139 14.2 MKJ OCT 12.10 13.1 DGP OCT 11.1833 13.3 HSG OCT 12.1042 13.1 MKJ OCT 11.8771 13.0 JCN OCT 12.1896 12.9 HSG OCT 12.019 13.0 PYG OCT 12.400 12.6 CCDV OCN ---------------------------------------------------------------------------- 0401+50 FO PERSEI The dwarf nova type cataclysmic variable FO PER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 08.2400 16.27 CCDV ZRE OCT 12.1917 13.3 HSG OCT 12.0479 13.0 BRJ OCT 12.2260 13.88 CCDV ZRE OCT 12.10 13.6 DGP OCT 12.409 13.5 CCDV OCN ---------------------------------------------------------------------------- 0409-71 VW HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable VW HYI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 08.11 13.8 MLF OCT 10.800 10.3 MLF OCT 08.4410 13.8 SRX OCT 10.885 9.0 OB OCT 08.7 <12.9 OB OCT 11.5410 9.3 SRX OCT 10.4403 12.4 SRX OCT 12.4632 9.6 SRX OCT 10.5069 12.2 SRX ---------------------------------------------------------------------------- 0611+15 CZ ORIONIS The dwarf nova type cataclysmic variable CZ ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 07.192 <13.4 MUY OCT 11.7451 12.1 SRX OCT 10.13 12.0 KTO OCT 12.3104 12.1 SXN OCT 11.4514 11.9 BEB ---------------------------------------------------------------------------- 1612-54 HP NORMAE The dwarf nova type (Z CAM subclass) cataclysmic variable HP NOR appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 08.4139 <14.0 SRX OCT 12.4167 13.0 SRX OCT 10.4382 13.0 SRX ---------------------------------------------------------------------------- 1640+25 AH HERCULIS The dwarf nova type (Z CAM subclass) cataclysmic variable AH HER is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 08.1000 14.0 HSG OCT 11.0917 12.4 HSG OCT 08.133 14.2: MRV OCT 11.9924 11.5 MKJ OCT 09.1035 13.2 HSG OCT 12.0083 11.5 BRJ OCT 09.77 13.5 GUN OCT 12.0236 11.7 BEB OCT 10.2194 12.4 SQN OCT 12.0965 12.1 HSG OCT 10.77 12.1 GUN OCT 12.10 11.6 DGP ---------------------------------------------------------------------------- 1911-00 FO AQUILAE The dwarf nova type (SS CYG subclass) cataclysmic variable FO AQL is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 06.097 16.3 CCDV OCN OCT 11.0979 13.6 HSG OCT 06.815 <13.9 MUY OCT 11.873 14.0 PYG OCT 07.0250 <13.9 MKJ OCT 12.0160 13.8 BRJ OCT 07.0972 <13.9 SXN OCT 12.0340 13.8 MKJ OCT 08.4181 <14.4 SRX OCT 12.1000 13.7 HSG OCT 10.008 14.2 CCDV OCN OCT 12.4437 13.6 SRX OCT 10.4333 13.7 SRX ---------------------------------------------------------------------------- 2043+41 V516 CYGNI The dwarf nova type (SS CYG subclass) cataclysmic variable V516 CYG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 08.1710 17.00 CCDV ZRE OCT 12.0951 14.1 MKJ OCT 08.2056 <14.2 SXN OCT 12.1700 14.04 CCDV ZRE OCT 11.2306 <14.2 BTH OCT 12.1792 14.1 HSG OCT 11.933 14.1 PYG OCT 12.2306 14.0 BTH OCT 12.0278 14.0 BRJ OCT 12.257 13.8 CCDV OCN ---------------------------------------------------------------------------- 2053+25 VW VULPECULAE The dwarf nova type (SU UMA subclass) cataclysmic variable VW VUL appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 07.1674 <14.2 SXN OCT 11.921 14.2 PYG OCT 10.78 14.1 KTO ---------------------------------------------------------------------------- 2131+40 V630 CYGNI The dwarf nova type (possible SU UMA subclass) cataclysmic variable V630 CYG appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 10.215 <16.5 CCDV OCN OCT 12.274 15.1 CCDV OCN OCT 11.942 <15.2 PYG ---------------------------------------------------------------------------- 2209+12 RU PEGASI The dwarf nova type (SS CYG subclass) cataclysmic variable RU PEG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 09.7 12.6 OB OCT 11.7813 11.3 MED OCT 10.4688 12.0 SSU OCT 11.812 10.5 RMQ OCT 10.4785 12.6 SRX OCT 11.956 10.9 PYG OCT 10.766 12.3 OB OCT 11.9910 11.2 KMA OCT 10.888 12.0 OB OCT 12.0215 10.5 BRJ OCT 10.888 12.0 OB OCT 12.0510 10.8 GMB OCT 11.0230 11.8 GMB OCT 12.0653 11.0 TSC OCT 11.1083 11.5 HSG OCT 12.10 10.8 DGP OCT 11.1875 11.3 HSG OCT 12.1042 11.0 HSG OCT 11.2590 11.2 BTH OCT 12.1262 11.0 BEB OCT 11.4986 10.7 SSU OCT 12.1674 10.9 SXN OCT 11.5347 11.3 SRX OCT 12.4549 10.8 SRX OCT 11.749 11.0 OB ---------------------------------------------------------------------------- 2318+17 IP PEGASI The dwarf nova type cataclysmic variable IP PEG is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials OCT 10.4799 <15.0 SRX OCT 12.0125 12.8 MKJ OCT 10.4896 <13.8 SSU OCT 12.0222 13.6 BRJ OCT 10.76 <14.5 GUN OCT 12.0304 13.0 BEB OCT 11.1090 14.8 HSG OCT 12.0396 13.5 BRJ OCT 11.1181 14.8 HSG OCT 12.0535 13.7 BRJ OCT 11.1333 14.9 HSG OCT 12.0694 13.0 TSC OCT 11.1681 14.7 HSG OCT 12.0750 12.3 MKJ OCT 11.1868 14.6 HSG OCT 12.0986 12.9 HSG OCT 11.2625 13.7 BTH OCT 12.10 12.1 DGP OCT 11.5021 12.8 SSU OCT 12.1715 13.6 SXN OCT 11.5354 13.6 SRX OCT 12.1757 13.1 HSG OCT 11.77 13.9 GUN OCT 12.1931 12.9 HSG OCT 11.8708 12.9 JCN OCT 12.4556 13.0 SRX OCT 11.961 13.2 PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA MRV - R. MODIC, USA BRJ - J. BORTLE, USA MUY - E. MUYLLAERT, BELGIUM BTH - T. BURROWS, USA OB - M. OVERBEEK, SOUTH AFRICA DGP - G. DYCK, USA OCN - S. O'CONNOR, CANADA GMB - M. GABLE, USA PYG - G. POYNER, ENGLAND GUN - J. GUNTHER, FRANCE RMQ - M. RESZELSKI, POLAND HSG - G. HANSON II, USA SPK - P. SCHMEER, GERMANY JCN - C. JONES, ENGLAND SQN - L. SHAW, USA KMA - M. KOMOROUS, CANADA SRX - R. STUBBINGS, AUSTRALIA KTO - T. KINNUNEN, FINLAND SSU - S. SAKUMA, JAPAN MDP - P. MCDONALD, CANADA SXN - M. SIMONSEN, USA MED - K. MEDWAY, ENGLAND TSC - S. TRACY, USA MKJ - J. MCKENNA, USA ZRE - R. ZISSELL, USA MLF - L. MONARD, 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 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! ____________________________________________________________________________