[IAUC] CBET 896: 20070319 : SUPERNOVA 2007an IN NGC 4017

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                                                  Electronic Telegram No. 896
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2007an IN NGC 4017
     H. Yamaoka, Kyushu University, forwards the following prediscovery
magnitudes of 2007an by H. Kaneda (Sapporo, Hokkaido, Japan), using
unfiltered CCD images taken by K. Itagaki:  Jan. 30.648 UT, [18.0:
(estimate by Yamaoka); Feb. 19.600, 18.0; 20.829, 18.0; 24.591, 17.7;
25.516, 17.9; Mar. 7.523, 17.9; 9.539, 17.9.  These magnitudes refute
the suggestion on CBET 882 that 2007an was "probably" discovered within
a week of the explosion.


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                         (C) Copyright 2007 CBAT
2007 March 19                    (CBET 896)               Daniel W. E. Green