[IAUC] CBET 1646: 20090103 : SUPERNOVA 2009B IN UGC 4423

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                                                  Electronic Telegram No. 1646
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 2009B IN UGC 4423
     T. Boles, Coddenham, England, reports the discovery of an apparent
supernova (mag 17.2) on an unfiltered CCD image taken on Jan. 2.806 UT with a
0.35-m reflector.  The new object is located at R.A. = 8h30m51s.47, Decl. =
+74o41'08".1 (equinox 2000.0), which is approximately 7".6 west and 6".8
south of the center of UGC 4423.  SN 2009B was confirmed at mag 17.3 by R.
Arbour (South Wonston, Hants, England) on an unfiltered image taken on Jan.
3.865; Boles measures end figures 51s.48, 07".9 from Arbour's image.  Nothing
is present at this position on Boles' images from 2008 Feb. 8 and 2007 Apr.
11 (limiting mag 19.5) or on Digitized Sky Survey plates from 1997 Feb. 10
(limiting red mag 20.5) and 1998 Jan. 1 (limiting blue mag 21.0).
     P. Challis, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group, reports that a spectrum (range 320-850 nm)
of 2009B, obtained on Jan. 3 UT by M. Calkins with the F. L. Whipple
Observatory 1.5-m telescope (+ FAST), shows it to be a type-II-P supernova
about week after explosion.


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                         (C) Copyright 2009 CBAT
2009 January 3                   (CBET 1646)              Daniel W. E. Green