Electronic Telegram No. 1312 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2008bi IN NGC 2618 G. Pignata, J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, and G. Folatelli, Universidad de Chile; and D. Reichart, K. Ivarsen, 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 15.9) on an R-band image taken on Mar. 22.02 UT with the 0.41-m "PROMPT 4" telescope located at Cerro Tololo. The new object, which is also present in an image taken on Mar. 18.14 at mag approximately 16.7, is located at R.A. = 8h35m53s.39 +/- 0".1, Decl. = +0o42'23".1 +/- 0".1 (equinox 2000.0), which is about 2".0 west and 2".6 south of the center of the galaxy NGC 2618. Nothing is visible at this position on archival images taken on Mar. 1.08 and 10.07 (limiting mag 17.5). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2008 CBAT 2008 March 25 (CBET 1312) Daniel W. E. Green