[IAUC] CBET 2603: 20101223 : SUPERNOVA 2010lm

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                                                  Electronic Telegram No. 2603
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 en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2010lm
     G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy,
R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco,
Universidad de Chile; P. Gonzalez, Pontificia Universidad Catolica de Chile;
B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; 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
18.1 +/- 0.5) on an unfiltered image taken on Dec. 20.22 UT with the 0.41-m
'PROMPT 4' telescope located at Cerro Tololo.  The new object, which is also
present at mag approximately 17.0 +/- 0.3 in an image taken on Dec. 22.25, is
located at R.A. = 10h03m57s.35 +/- 0".2, Decl. = -27o38'30".3 +/- 0".2 (equinox
2000), which is about 2".8 west and 0".9 south of the center of the presumed
host galaxy.  Nothing is visible at this position on archival images taken on
Dec. 9.31 (limiting mag 18.5) and in a stack of seventeen 400-s images taken
between 2009 Nov. 8.33 and 2010 Nov. 25.26 (limiting mag 20.7).


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                         (C) Copyright 2010 CBAT
2010 December 23                 (CBET 2603)              Daniel W. E. Green