Electronic Telegram No. 1619 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 2008if IN MCG -01-24-10 G. Pignata, J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, D. Iturra, R. Cartier, and F. Forster, Universidad de Chile; B. Conuel, Wesleyan University; 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 14.9 +/- 0.1) on a Luminance-filter image taken on Dec. 12.21 UT with the 0.41-m 'PROMPT 2' telescope located at Cerro Tololo. The new object, which was confirmed at mag 14.4 +/- 0.1 on a similar image taken on Dec. 16.18, is located at R.A. = 9h20m23s.47 +/- 0".1, Decl. = -07o52'33".1 +/- 0".1 (equinox 2000), which is about 22".4 east and 17" north of center of the galaxy MCG -01-24-10. Nothing is visible at this position on archival images taken on Nov. 18.26 and Dec. 2.23 (limiting mag 18.0). Following posting on the Central Bureau's unconfirmed-objects webpage, S. Nakano (Sumoto, Japan) reports that K. Itagaki (Yamagata-ken, Japan, 0.60-m f/5.7 reflector) obtained an unfiltered CCD image (limiting mag 19.0) on Dec. 16.698 that shows 2008if at mag 16.0, measuring its position end figures to be 23s.48, 32".5. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2008 CBAT 2008 December 17 (CBET 1619) Daniel W. E. Green