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: 0109+37 FO AND 1552+72 SS UMI No. 495 0207-63 WX HYI 1804+67 EX DRA September 13, 1999 0605+47 SS AUR 1841+37 AY LYR 0744-23 BV PUP 1848-19 FN SGR 0803+62 SU UMA 1953+77 AB DRA 0814+73 Z CAM 2026-45 TU IND 0854-24 VZ PYX 2043+41 V516 CYG 1317-41 V803 CEN ---------------------------------------------------------------------------- 0109+37 FO ANDROMEDAE The dwarf nova type (SU UMA subclass) cataclysmic variable FO AND appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 12.2670 17.57 CCDV ZRE SEP 13.2618 15.0 HSG SEP 12.3160 <14.0 SXN ---------------------------------------------------------------------------- 0207-63 WX HYDRI The dwarf nova type (SU UMA subclass) cataclysmic variable WX HYI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 11.02 14.4 MLF SEP 13.3917 12.3 SRX SEP 12.4035 14.2 SRX SEP 13.5750 12.0 SRX SEP 13.081 12.6 SJX ---------------------------------------------------------------------------- 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 SEP 11.045 14.4 DPV SEP 12.2660 11.2 MDP SEP 11.937 12.6 DPV SEP 12.3260 11.72 CCDV ZRE SEP 12.04 12.0 GUN SEP 13.159 11.4 SPK SEP 12.0500 12.1 CMG SEP 13.2722 11.9 HSG ---------------------------------------------------------------------------- 0744-23 BV PUPPIS The dwarf nova type (SS CYG subclass) cataclysmic variable BV PUP appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 08.7556 <14.4 SRX SEP 11.7479 13.5 SRX ---------------------------------------------------------------------------- 0803+62 SU URSAE MAJORIS The dwarf nova type (SU UMA subclass prototype) cataclysmic variable SU UMA appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 10.972 14.0: DPV SEP 11.951 13.4 DPV ---------------------------------------------------------------------------- 0814+73 Z CAMELOPARDALIS The dwarf nova type (Z CAM subclass prototype) cataclysmic variable Z CAM is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 12.0514 13.0 BRJ SEP 13.0333 11.0 CGF SEP 12.1 13.2 CGF SEP 13.0417 11.3 BRJ SEP 12.9000 11.4 VFK SEP 13.07 10.7 KTO SEP 13.02 11.2 DGP SEP 13.1986 10.8 HSG ---------------------------------------------------------------------------- 0854-24 VZ PYXIDIS The dwarf nova type (SU UMA subclass) cataclysmic variable VZ PYX appears to be in outburst, as indicated by the following observation: AAVSO Observer UT Mag. Initials SEP 11.7535 14.0 SRX ---------------------------------------------------------------------------- 1317-41 V803 CENTAURI The cataclysmic variable V803 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 09.4104 14.2 SRX SEP 12.4007 12.5 SRX SEP 10.4056 14.8 SRX SEP 12.702 12.8 MLF SEP 11.714 13.0 MLF SEP 13.3993 12.8 SRX ---------------------------------------------------------------------------- 1552+72 SS URSAE MINORIS The dwarf nova type (SU UMA subclass) cataclysmic variable SS UMI is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 09.926 <15.0 PYG SEP 12.0674 14.2 CGF SEP 11.1319 14.5 HSG SEP 13.0 <14.7 CGF SEP 11.871 14.4: DPV ---------------------------------------------------------------------------- 1804+67 EX DRACONIS The eclipsing dwarf nova type cataclysmic variable EX DRA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 09.925 15.4 PYG SEP 12.0729 12.9 BRJ SEP 10.841 <13.4 MUY SEP 13.0361 12.8 CGF SEP 11.1285 13.4 HSG SEP 13.0660 <15.0 BRJ SEP 11.1431 13.4 HSG SEP 13.0986 12.9 BRJ SEP 11.842 13.5 MUY SEP 13.2090 13.0 HSG SEP 12.0715 12.8 CGF ---------------------------------------------------------------------------- 1841+37 AY LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable AY LYR is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 09.860 18.71 CCD SMI SEP 12.0576 13.6 DPL SEP 10.854 16.63 CCD SMI SEP 12.0597 13.4 BRJ SEP 11.831 13.98 CCD SMI SEP 12.0826 14.0 CGF SEP 11.84 13.3 VET SEP 12.1556 13.5 SXN SEP 11.849 13.6 MUY SEP 12.968 14.4: DPV SEP 11.857 13.4 DPV SEP 13.0549 15.0: BRJ SEP 11.90 13.6 GUN SEP 13.2292 14.9 HSG SEP 11.927 13.6 MGH ---------------------------------------------------------------------------- 1848-19 FN SAGITTARII The symbiotic star FN SGR appears to be brightening, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 03.73 13.9 MLF SEP 12.09 12.7 BRJ SEP 08.72 13.7 MLF SEP 13.03 12.5 BRJ ---------------------------------------------------------------------------- 1953+77 AB DRACONIS The dwarf nova type (Z CAM subclass) cataclysmic variable AB DRA is undergoing an outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 09.9785 14.9 POX SEP 11.1292 12.4 HSG SEP 10.0909 <12.9 BEB SEP 11.844 12.8 MUY SEP 10.80 12.8 KTO SEP 11.875 12.6 DPV SEP 10.8326 12.8 JCN SEP 12.0743 12.7 BRJ SEP 10.840 12.8 MUY SEP 12.1027 12.9 BEB SEP 10.916 12.7 DPV SEP 12.2000 12.8 GRI SEP 11.0764 12.7 BEB SEP 13.2104 13.3 HSG ---------------------------------------------------------------------------- 2026-45 TU INDI The dwarf nova type cataclysmic variable TU IND appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials SEP 11.6076 <15.0 SRX SEP 13.5521 14.2 SRX SEP 12.4208 14.6 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 SEP 09.9993 <15.5 POX SEP 12.1590 13.81 CCDV ZRE SEP 11.878 13.8 MUY SEP 12.311 13.9 CCDV OCN SEP 12.0701 13.9 BRJ SEP 13.0646 14.0 BRJ SEP 12.0931 13.8 CGF SEP 13.0715 13.8 CGF SEP 12.1465 13.9 GRI SEP 13.2382 14.3 HSG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA MLF - L. MONARD, SOUTH AFRICA BRJ - J. BORTLE, USA MUY - E. MUYLLAERT, BELGIUM CGF - G. CHAPLE JR., USA OCN - S. O'CONNOR, CANADA CMG - G. COMELLO, NETHERLANDS POX - M. POXON, ENGLAND DGP - G. DYCK, USA PYG - G. POYNER, ENGLAND DPL - P. DOMBROWSKI, USA SJX - J. SMIT, SOUTH AFRICA DPV - P. DUBOVSKY, SLOVAKIA SMI - A. SMITH, ENGLAND GRI - J. GRIESE III, USA SPK - P. SCHMEER, GERMANY GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON II, USA SXN - M. SIMONSEN, USA JCN - C. JONES, ENGLAND VET - M. VERDENET, FRANCE KTO - T. KINNUNEN, FINLAND VFK - F. VOHLA, GERMANY MDP - P. MCDONALD, CANADA ZRE - R. ZISSELL, USA MGH - H. MCGEE, ENGLAND 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! ____________________________________________________________________________