Electronic Telegram No. 2238
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 2010bo
     G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy,
R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F.
Forster, S. Marchi, and A. Rojas, Universidad de Chile; 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 15.8 +/- 0.2) on an unfiltered image taken on Apr. 10.27
UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo.  The new
object, which is also present at mag approximately 15.9 +/- 0.2 in an image
taken on Apr. 11.11, is located at R.A. = 15h56m22s.57 +/- 0".1, Decl. =
-31o32'09".8 +/- 0".1 (equinox 2000.0), which is about 5".9 west and 3".4
north of the center of the apparent host galaxy.  Nothing is visible at this
position on archival images taken on Mar. 19.38 (limiting mag 18.5) and
2009 Aug. 10.99 (limiting mag 18.0).


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 April 12                    (CBET 2238)              Daniel W. E. Green