[IAUC] CBET 2371: 20100714 : SUPERNOVA 2010gg IN ESO 602-25

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                                                  Electronic Telegram No. 2371
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.
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SUPERNOVA 2010gg IN ESO 602-25
     J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G.
Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G.
Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan
University; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster,
M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill,
on behalf of the CHASE project, report the discovery of an apparent supernova
(mag approximately 17.7) on an unfiltered image taken on July 12.31 UT with
the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo.  The new object,
which is also present at mag approximately 17.5 in an image taken on July
13.30, is located at R.A. = 22h31m25s.47 +/- 0".1, Decl. = -19o01'54".8 +/-
0".1 (equinox 2000.0), which is about 0".1 east and 9".5 north of the center
of the galaxy ESO 602-25.  Nothing is visible at this position on archival
images taken on June 22.24 (limiting mag 17.0) and in a stack of twenty-three
40-s images taken between 2009 Apr. 13.39 and 2010 May 7.36  (limiting mag
20.5).


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                         (C) Copyright 2010 CBAT
2010 July 14                     (CBET 2371)              Daniel W. E. Green