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 0803+62 SU UMA No. 732 0434-04 BF ERI 0939+52 ER UMA January 29, 2001 0501-04 AQ ERI 1220-45 V373 CEN 0547-05 CN ORI 1307-60 NN CEN 0640-16 HL CMA 1841+37 AY LYR 0744-23 BV PUP ---------------------------------------------------------------------------- 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 JAN 24.0000 14.1 CGF JAN 26.0701 11.9 CGF JAN 24.76 14.4 VET JAN 26.1264 11.6 SXN JAN 24.775 13.8 MUY JAN 26.2194 10.7 VFK JAN 24.781 13.8 HHU JAN 26.706 10.9 RMQ JAN 24.7924 13.4 POX JAN 27.799 11.0 PYG JAN 25.0312 13.7 STI JAN 28.733 11.0 SJZ JAN 25.1708 13.8 AAP JAN 28.79 10.9 RCH JAN 25.3625 12.8 POX JAN 28.8198 11.31 CCD DRG JAN 25.73 13.3 SJZ JAN 28.840 11.0 OJR JAN 25.834 12.7 RMQ JAN 28.9944 11.2 BRJ JAN 25.878 12.3 RMQ JAN 29.0389 10.7 TSC JAN 25.914 12.4 MGH JAN 29.0521 11.1 HP JAN 25.9944 12.2 BRJ ---------------------------------------------------------------------------- 0434-04 BF ERIDANI The cataclysmic variable BF ERI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 21.510 14.6 SRX JAN 26.1931 13.5 SXN JAN 25.3924 13.4 POX JAN 29.501 12.6 SRX ---------------------------------------------------------------------------- 0501-04 AQ ERIDANI The dwarf nova type (SU UMA subclass) cataclysmic variable AQ ERI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 26.2097 <14.2 SXN JAN 29.497 13.5 SRX ---------------------------------------------------------------------------- 0547-05 CN ORIONIS The dwarf nova type (Z CAM subclass) cataclysmic variable CN ORI is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 26.903 <14.5 RMQ JAN 29.0132 13.7 BRJ JAN 26.935 <14.3 PYG JAN 29.1014 13.3 TSC JAN 28.854 <14.0 OJR JAN 29.499 13.4 SRX ---------------------------------------------------------------------------- 0640-16 HL CANIS MAJORIS The dwarf nova type (Z CAM subclass) cataclysmic variable HL CMA is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 27.746 <14.4 PEX JAN 29.474 11.8 SRX JAN 28.881 <14.1 OJR JAN 29.76 11.6 GUN JAN 29.1042 12.1 TSC ---------------------------------------------------------------------------- 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 JAN 22.765 15.0 PEX JAN 29.531 13.8 SRX ---------------------------------------------------------------------------- 0803+62 SU URSAE MAJORIS The dwarf nova type (SU UMA subclass prototype) cataclysmic variable SU UMA may be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 28.857 14.1 OJR JAN 29.76 11.1 GUN JAN 29.0194 13.7 BRJ ---------------------------------------------------------------------------- 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 JAN 27.015 14.8 RMQ JAN 29.0208 13.1 BRJ JAN 28.065 <14.1 PYG ---------------------------------------------------------------------------- 1220-45 V373 CENTAURI The dwarf nova type cataclysmic variable V373 CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 22.800 <15.3 PEX JAN 29.539 13.6 SRX JAN 27.767 14.1 PEX ---------------------------------------------------------------------------- 1307-60 NN CENTAURI The dwarf nova type (SS CYG subclass) cataclysmic variable NN CEN is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 22.805 <15.4 PEX JAN 29.523 13.9 SRX JAN 27.774 14.0 PEX ---------------------------------------------------------------------------- 1841+37 AY LYRAE The dwarf nova type (SU UMA subclass) cataclysmic variable AY LYR is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 23.226 <14.2 MUY JAN 26.4536 13.4 CGF JAN 24.190 <13.6 RMQ JAN 27.211 13.1 MGH ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: AAP - A. ABBOTT, CANADA POX - M. POXON, ENGLAND BRJ - J. BORTLE, USA PYG - G. POYNER, ENGLAND CGF - G. CHAPLE JR., USA RCH - C. RAMILLON, FRANCE DRG - R. DIETHELM, SWITZERLAND RMQ - M. RESZELSKI, POLAND GUN - J. GUNTHER, FRANCE SJZ - J. SPEIL, POLAND HHU - H. HAUTECLER, BELGIUM SRX - R. STUBBINGS, AUSTRALIA HP - W. HAMPTON, USA STI - P. STEFFEY, USA MGH - H. MCGEE, ENGLAND SXN - M. SIMONSEN, USA MUY - E. MUYLLAERT, BELGIUM TSC - S. TRACY, USA OJR - J. OSORIO, SPAIN VET - M. VERDENET, FRANCE PEX - A. PEARCE, AUSTRALIA VFK - F. VOHLA, GERMANY 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! ____________________________________________________________________________