[IAUC] CBET 1330: 20080410 : SUPERNOVA 2008S IN NGC 6946

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                                                  Electronic Telegram No. 1330
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
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SUPERNOVA 2008S IN NGC 6946
     D. L. Welch, McMaster University; G. C. Clayton, Lousiana State
University; and B. Sugerman, Goucher College, report six nights of pre-
outburst g', r', and i' imaging of SN 2008S (cf. CBETs 1234, 1235, 1236,
1275) obtained with the 8.1-m Gemini North reflector (+ GMOS).  Exposures of
60 s were obtained in each of the filters on 2004 Aug. 20, 2004 Oct. 8, 2004
Dec. 11, 2005 Aug. 4, 2005 Oct. 4, and 2006 July 18 UT.  Image FWHM ranged
from 0".58 to 0".88.  Based on the photometric transformations between g'r'i'
and VRI reported by Welch et al. 2007 (Ap.J., 669, 525), it is concluded that
no object brighter than magnitudes V = 24.0, R = 24.5, and I = 22.9 was
detected at the 3-sigma level at the position of 2008S in any of these
images.  Reduced and "well-corrected, sub-aperture"-registered images of the
field may be downloaded at http://crocus.physics.mcmaster.ca/SN2008S/.


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                         (C) Copyright 2008 CBAT
2008 April 10                    (CBET 1330)              Daniel W. E. Green