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: 0735-40 CCCS 1825 - NEW RED VARIABLE IN PUPPIS No. 558 0058+40 RX AND 0945+12 X LEO January 14, 2000 0401+50 FO PER 2043+41 V516 CYG ---------------------------------------------------------------------------- 0735-40 CCCS 1825 - NEW RED VARIABLE IN PUPPIS We have received a report from D. Green, Central Bureau for Astronomical Telegrams, that Paul Camilleri, Australia, has discovered a new variable, likely a long period variable, in Puppis at magnitude 9.5 on January 7.508 UT. This new variable has a strong red color. The following precise position for this object was provided by G. Garradd, Australia: R.A. = 07h 39m 04.40s Decl. = -40 degrees 28' 47.0" (epoch 2000) Observers are encouraged to monitor this variable throughout its entire cycle, so that its nature may be determined. Because the star is so red, please be very careful in making your observations that you do not look at the variable for any length of time. Use the quick-glance method to avoid a falsely-bright magnitude estimate caused by the sensitivity of the human eye to red light. If you carry out CCD photometry of the star, it is strongly recommended that you use a Visual filter, because of the red-light leak in the unfiltered CCD. Please see the AAVSO web page for more information and a "b" scale AAVSO preliminary chart. (http://www.aavso.org) Congratulations to Paul on his latest discovery! ---------------------------------------------------------------------------- 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 13.0875 13.5 KB JAN 14.7110 11.0 SJZ JAN 13.85 12.7 VET ---------------------------------------------------------------------------- 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 JAN 08.1924 <15.0 HSG JAN 09.2889 13.3 HSG JAN 08.2743 <14.2 SXN JAN 11.772 13.9 OJR JAN 09.0063 13.1 BRJ JAN 13.0278 12.7 BRJ JAN 09.1000 14.05 CCDV ZRE ---------------------------------------------------------------------------- 0945+12 X LEONIS The dwarf nova type cataclysmic variable X LEO is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials JAN 10.084 16.0: PYG JAN 13.88 13.1 VET JAN 12.5715 <14.6 SRX JAN 14.18 12.4 GUN JAN 13.5278 <13.5 SRX JAN 14.2 12.4 GUN JAN 13.7000 13.6 SRX JAN 14.2472 12.6 BEB JAN 13.7299 13.5 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 JAN 08.0868 <15.5 HSG JAN 13.0000 14.0 BRJ JAN 08.751 15.4: PYG ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: BEB - R. BERG, USA PYG - G. POYNER, ENGLAND BRJ - J. BORTLE, USA SJZ - J. SPEIL, POLAND GUN - J. GUNTHER, FRANCE SRX - R. STUBBINGS, AUSTRALIA HSG - G. HANSON, USA SXN - M. SIMONSEN, USA KB - W. KAMINSKI, USA VET - M. VERDENET, FRANCE OJR - J. OSORIO, SPAIN ZRE - R. ZISSELL, USA Please monitor these and other variable stars closely and phone-in, fax, or e-mail your observations to the AAVSO. Good observing! Rebecca Pellock, Technical Assistant on behalf of Janet A. Mattei, Director ____________________________________________________________________________ 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! ____________________________________________________________________________