[IAUC] CBET 1336: 20080414 : SUPERNOVA 2008bt IN NGC 3404

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                                                  Electronic Telegram No. 1336
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT en CFA.HARVARD.EDU (science)
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SUPERNOVA 2008bt IN NGC 3404
     Independent discoveries have been reported of an apparent supernova on
unfiltered CCD images:  on Apr. 13.23 UT by D. Winslow, W. Li, and A. V.
Filippenko, University of California at Berkeley, via LOSS/KAIT images (cf.
CBET 1322); and on Apr. 14.548 by K. Itagaki, Teppo-cho, Yamagata, Japan,
using a 0.60-m f/5.7 reflector (communicated by S. Nakano).  Discovery data
are tabulated below:

2008 UT          R.A. (2000.0) Decl.     Mag      Offset           Observer
Apr. 13.23    10 50 16.88  -12 06 32.0   16.6   16".4 W, 0".4 S    LOSS/KAIT
Apr. 14.548   10 50 16.99  -12 06 31.5   16.6   14" W, 1".1 S      Itagaki

Additional magnitudes for 2008bt in NGC 3404:  2006 Feb. 23, [19.0 (Itagaki);
2008 Apr. 3.24, [18.8 (KAIT); 4.54, [18.5 (Itagaki); 14.24, 16.5 (KAIT).
Itagaki adds that nothing is visible at the position of 2008bt on the
Digitized Sky Survey.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2008 CBAT
2008 April 14                    (CBET 1336)              Daniel W. E. Green