Electronic Telegram No. 659
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)
URL http://cfa-www.harvard.edu/iau/cbat.html


SUPERNOVA 2006is
     Further to IAUC 8755, R. Mostardi, R. R. Prasad, and W. Li report the
LOSS discovery of an apparent supernova on unfiltered KAIT images taken on
Sept. 18.54 (at mag 17.0), 19.54 (mag 16.8), and 28.51 UT (mag 16.4).  SN
2006is is located at R.A. = 5h17m34s.37, Decl. = -23o46'54".2 (equinox
2000.0), which is 2".1 west and 4".9 north of a faint galaxy (the new
object also being 103".1 east and 130".1 north of the nucleus of ESO
486-G49).  There are several faint galaxies visible on the Digitized Sky
Survey images in the neighborhood of the new object.  A KAIT image taken
on Feb. 4.11 showed nothing at this position (limiting mag 19.0).
     N. Morrell, G. Folatelli, and W. Krzeminski, on behalf of the
Carnegie Supernova Project, report that 2006is was detected at V = 16.2 in
u', B, and V CCD images obtained on Sept. 30.4 UT with the 1.0-m Swope
telescope at Las Campanas Observatory, providing position end figures
34s.37, 54".5.  A spectrogram, obtained by A. Dressler and D. Ossip on Oct.
1.34 with the IMACS Spectrograph attached to the Magellan I Baade telescope
at Las Campanas, confirms the new object as a type-Ia supernova around
maximum light.  The supernova is most probably hosted by the faint galaxy
located 3".2 east and 6".5 south of the position of the supernova (the same
galaxy noted by Mostardi et al. above, and also mentioned by Maddox et al.
1990, MNRAS 243, 692).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2006 CBAT
2006 October 5                   (CBET 659)               Daniel W. E. Green