Electronic Telegram No. 2348
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Room 209; Dept. of Earth and Planetary
 Sciences; Harvard University; 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbat@iau.org; cbatiau@eps.harvard.edu
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2010ex IN PGC 70222
     F. Ciabattari, S. Donati, and E. Mazzoni, Borgo a Mozzano, Italy, report
their discovery of an apparent supernova (mag 16.1) on unfiltered CCD images
(limiting magnitude 17.8) obtained using a 0.5-m reflector on July 1.10 UT,
with confirming images from July 2.02-2.04 (limiting magnitude 18.3) showing
2010ex at mag 15.8.  The new object is located at R.A. = 23h00m10s.90, Decl.
= +26d05'57".2 (equinox 2000.0; astrometry with respect to UCAC2-catalogue
stars), which is 7" north of the center of the galaxy PGC 70222.  Nothing is
present at this position on their images from Aug.-Nov. 2008 (limiting mag
19.5) or on a Palomar Sky Survey (POSS) F plate from 1991 Oct. 3 (limiting
mag 20.3) and a POSS J plate from 1992 Aug. 28 (limiting magnitude 20.3).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2010 CBAT
2010 July 2                      (CBET 2348)              Daniel W. E. Green