[IAUC] CBET 1844: 20090615 : SUPERNOVA 2009gf IN NGC 5525

[IAUC mailing list]

                                                  Electronic Telegram No. 1844
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)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2009gf IN NGC 5525
     S. Nakano, Sumoto, Japan, reports the discovery by Koichi Itagaki
(Teppo-cho, Yamagata) of an apparent supernova (mag 16.1) on eight 20-s
unfiltered CCD frames (limiting magnitude 19.0) taken on June 15.607 UT using
a 0.60-m f/5.7 reflector.  Itagaki then found a pre-discovery image taken on
June 9.624 UT, showing 2009gf at mag 17.7.  The new object is located at R.A.
= 14h15m37s.11 +/- 0".01, Decl. = +14o16'48".6 +/- 0".1 (equinox 2000.0;
average of images on two nights), which is 31" west and 8".5 south of the
center of NGC 5525.  Nothing is visible at this position on Itagaki's many
past frames (limiting mag 19.0), including the most recent image taken on
2009 June 1.591 (limiting mag 18.5), or on the Digitized Sky Survey.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2009 CBAT
2009 June 15                     (CBET 1844)              Daniel W. E. Green