Electronic Telegram No. 113
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
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SUPERNOVA 2005an IN ESO 506-G11
     Further to IAUC 8484, K. Shimasaki and W. Li report the LOSS discovery
of an apparent supernova on an unfiltered KAIT image taken on Mar. 3.35 UT
(mag 17.3).  SN 2005an is located at R.A. = 12h28m27s.35, Decl.  =
-24 38'02".4 (equinox 2000.0), which is 0".2 east and 10".3 north of the
nucleus of ESO 506-G11.  A KAIT image taken on Jan. 20.36 showed nothing at
this position (limiting mag 19.0).
     M. Modjaz, R. Kirshner and P. Challis, Harvard-Smithsonian Center for
Astrophysics, report that a spectrum (range 350-740 nm) of SN 2005an,
obtained by H. Hao on Mar. 4.38 UT, shows it to be most probably a young
type-II supernova.  The noisy spectrum consists of a featureless and blue
continuum and is similar to an early spectrum of SN 1993J (Matheson et al.
2000, A.J. 120, 1487).


NOTE: These 'Central Bureau Electronic Telegrams' are intended to
      be preliminary announcements of items that later appear in the
      formal IAU Circulars.  Citations should normally be made to IAUCs
      rather than to CBETs.

                         (C) Copyright 2005 CBAT
2005 March 4                     (CBET 113)               Daniel W. E. Green