Electronic Telegram No. 2125

Central Bureau for Astronomical Telegrams
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138,
U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://www.cfa.harvard.edu/iau/cbat.html

J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; G. Pignata, 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 14.8 +/- 0.1) on an unfiltered image taken on Jan. 13.26 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which was confirmed at mag approximately 14.7 on Jan. 14.10, is located at R.A. = 10h05m21s.05 +/- 0".1, Decl. = -34°13'21".0 +/- 0".1 (equinox 2000.0), which is about 24".8 west and 9".1 south of the center of the galaxy NGC 3120. Nothing is visible at this position on archival images taken on Dec. 24.22 (limiting mag 18.0) and Nov. 14.31 (limiting mag 18.5). The type-II supernova 1999ca also appeared in this galaxy (cf. IAUCs 7158, 7160, 7161).

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.
2010 January 14
(C) Copyright 2009 CBAT
(CBET 2125 )
Daniel W. E. Green