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Circular No. 6679
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/cfa/ps/cbat.html
Phone 617-495-7244/7440/7444 (for emergency use only)
SUPERNOVA 1997cr IN ANONYMOUS GALAXY
The Mount Stromlo Abell Cluster Supernova Search Team (cf.
IAUC 6639) reports the discovery of an apparent supernova (V =
20.4, R = 20.4) on CCD images taken on June 7 by S. Chan at the
Mount Stromlo 1.27-m telescope (+ Macho Camera). SN 1997cr is
located near Abell 3744 at R.A. = 21h05m48s.21, Decl. =
-25o13'29".8 (equinox 2000.0). A nearby star has position end
figures 54s.32, 14'47".4. SN 1997cr was also present on similar
frames taken on June 1 (same magnitudes), but it is not visible on
images taken on 1996 May 22 (limiting mag R = 21). Finding charts
are available at http://msowww.anu.edu.au/~reiss/Abell_SNSearch/
.
NOVA SCORPII 1997
P. Mason, T. E. Harrison, B. J. McNamara, and J. J. Johnson,
New Mexico State University, report that observations of Liller's
suspected nova (IAUC 6675, 6678) obtained with the ARC 3.5-m
telescope confirm that this object is a classical nova. Optical
spectroscopy reveals broad emission lines of H-alpha (FWHM = 3000
km/s), H-beta, the [Ca II] infrared triplet, and strong [Fe II]
lines from multiplet 42. The H-beta profile shows evidence for a
weak P-Cyg profile.
Z ANDROMEDAE
J. A. Mattei, AAVSO, reports that this prototype of symbiotic
stars is undergoing an outburst, as indicated by the following
observations submitted to the AAVSO: May 8.46 UT, 10.9 (G. Hanson,
II, Cave Creek, AZ); 20.07, 10.6 (G. Poyner, West Midlands,
England); 26.36, 10.1 (R. Modic, Richmond Heights, OH); 29.44, 10.0
(Hanson); 31.093, 9.9 (P. Schmeer, Saarbrucken, Germany); June
4.36, 9.7 (Modic); 6.14, 9.8 (J. Bortle, Stormville, NY); 8.36, 9.7
(Hanson); 9.13, 9.5 (Bortle). The last outburst was in 1985
September, when Z And brightenen to visual mag 9.1 and was above
minimum for about 290 days. Following the 1985 outburst, Z And
showed small-amplitude oscillations of about 0.5 mag until the
current outburst.
COMET C/1997 J2 (MEUNIER-DUPOUY)
Visual m_1 estimates: May 28.94 UT, 12.0 (A. Pereira, Cabo da
Roca, Portugal, 0.25-m reflector); June 7.93, 12.4 (M. Meyer,
Frauenstein, Germany, 0.25-m refl.); 10.13, 12.4 (J. Bortle,
Stormville, NY, 0.41-m reflector).
Corrigendum. On IAUC 6659, last line, for 350 deg read 170
deg
(C) Copyright 1997 CBAT
1997 June 10 (6679) Daniel W. E. Green
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