Electronic Telegram No. 798
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)
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SUPERNOVA 2007C IN NGC 4981
     S. Nakano, Sumoto, Japan, reports the discovery by K. Itagaki
(Teppo-cho, Yamagata, Japan) of an apparent supernova (mag 15.9) on
ten unfiltered 20- to 60-s CCD exposures taken around Jan. 7.86 UT
using a 0.30-m f/7.8 reflector at his Takane station in Tochigi-ken;
2007C is located at R.A. = 13h08m49s.30, Decl. = -6o47'01".0 (equinox
2000.0), which is 9" east and 22" south of the center of NGC 4981.
Nothing is visible at this location on Itagaki's many past frames
(limiting mag 19.0), with his most recent survey frame taken on 2006
Dec. 23.87 (nothing visible to mag 18.5); also, nothing appears at
this position on the Digitized Sky Survey.  A confirming image by
Itagaki from Jan. 8.71 yields position end figures 49s.31, 46'59".9
and magnitude 15.8 for 2007C.  K. Kadota (Ageo, Japan) reports
position end figures 49s.32, 47'00".3 (and offset 8".3 east, 21"
south) and mag 16.0 from an unfiltered CCD exposure taken with a
0.25-cm f/5 reflector on Jan. 8.704.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2007 CBAT
2007 January 9                   (CBET 798)               Daniel W. E. Green