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: 1828-14 NOVA SCUTI 2000 No. 592 0418-13 AH ERI March 17, 2000 0611+15 CZ ORI 1803+05 V426 OPH ---------------------------------------------------------------------------- 1828-14 NOVA SCUTI 2000 We have been informed by the Central Bureau for Astronomical Telegrams (IAU Circular 7382) that Katsumi Haseda, Japan, discovered a nova photographically on Mar 5.81 UT. The object was confirmed on a photo taken by Haseda on Mar 13.819 UT at magnitude 11.6, and at magnitude 11.24 on unfiltered CCD images taken Mar 14.9 UT by M. Uemura and T. Kato, Japan. No object appears on the Digitized Sky Survey at the location of the nova to magnitude 19. Spectroscopic confirmation was obtained by M. Fujii, Japan, who obtained spectra on Mar 16.81 UT that showed the object to be a nova. H. Yamaoka, Japan, measured the CCD image taken by Uemura and Kato, and gives the following position for N Sgr 2000: R.A. = 18h 34m 03.16s Decl. = -14 degrees 45' 11.46" (2000) A CCD image obtained on Mar. 16.5 UT by J. Quinn and P. Garnavich, USA, showed the nova at R magnitude 11.3 +/- 0.1, and quite blue in color. The image may be seen at http:://cfa-www.harvard.edu/~peterg/nsct_vatt.gif. An AAVSO Alert Notice containing more information on the nova and an AAVSO preliminary chart will be issued on Monday, March 20. Congratulations to Katsumi Haseda on discovering this nova! ---------------------------------------------------------------------------- 0418-13 AH ERIDANI The dwarf nova type cataclysmic variable AH ERI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 04.1014 <15.3 HSG MAR 16.4278 <13.5 SRX MAR 08.4451 <15.0 NLX MAR 17.4118 14.0 SRX MAR 15.4194 <14.0 SRX ---------------------------------------------------------------------------- 0611+15 CZ ORIONIS The dwarf nova type cataclysmic variable CZ ORI appears to be in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 11.1167 <15.0 HSG MAR 16.4361 12.8 SRX MAR 15.1194 <14.4 HSG MAR 17.4292 12.4 SRX MAR 15.825 <13.4 OJR ---------------------------------------------------------------------------- 1803+05 V426 OPHIUCHI The dwarf nova type cataclysmic variable V426 OPH is in outburst, as indicated by the following observations: AAVSO Observer AAVSO Observer UT Mag. Initials UT Mag. Initials MAR 04.212 13.0 MUY MAR 15.8569 11.0 PEX MAR 04.3924 12.5 SXN MAR 17.184 11.2 MUY MAR 13.8556 12.6 PEX MAR 17.3653 11.5 SXN ---------------------------------------------------------------------------- We thank the following contributors for the data that they have provided for this News Flash: HSG - G. HANSON II, USA PEX - A. PEARCE, AUSTRALIA MUY - E. MUYLLAERT, BELGIUM SRX - R. STUBBINGS, AUSTRALIA NLX - P. NELSON, AUSTRALIA SXN - M. SIMONSEN, USA OJR - J. OSORIO, SPAIN 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! ____________________________________________________________________________