Electronic Telegram No. 2494
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2010ir IN ESO 491-12
     J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, G. Folatelli, R. Cartier,
and F. Forster, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad
Andres Bello; P. Gonzalez, Pontificia Universidad Catolica 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 16.6) on an unfiltered image taken on Oct. 9.35
UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo.  The new
object, which is also present in images taken on Oct. 12.27 (at mag
approximately 16.8), is located at R.A. = 6h57m23s.79 +/- 0".1, Decl. =
-24o43'10".5 +/- 0".1 (equinox 2000), which is about 11".8 west and 26".1
north of the center of the galaxy ESO 491-12.  Nothing is visible at this
position on archival images taken on Aug. 27.40 (limiting mag 18.0) and Feb.
11.17 (limiting mag 18.5).


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 October 13                  (CBET 2494)              Daniel W. E. Green