Electronic Telegram No. 2077 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 SUPERNOVAE 2009mg AND 2009mi L. A. G. Monard, Pretoria, S. Africa, reports his discovery of an apparent supernova (mag 15.4), designated 2009mi, on several unfiltered CCD images taken with on Dec. 12.905 UT at his Bronberg Observatory. The position for 2009mi was measured by Monard from his images and from an unfiltered CCD image taken by J. Brimacombe (Cairns, Australia; nine co-added 600-s images obtained remotely with a 0.51-m reflector near Mayhill, NM, U.S.A.) on Dec. 14.358 in response to the posting on the Central Bureau's unconfirmed-objects webpage: R.A. = 5h52m38s.23, Decl. = -17o47'02".5 (equinox 2000.0), which is 20" east and 10" north of the galaxy core of IC 2151. Nothing is seen at this position in Digitized Sky Survey images (limiting red mag 20.5). Additional CCD magnitudes measured by Monard for 2009mi: Nov. 23.904, [18.7; Dec. 14.358, 15.3; 15.367, 15.2. Brimacombe has posted his image at the following website URL: http://www.flickr.com/photos/43846774@N02/4184646463/. Monard adds that SN 2009mg (cf. CBET 2071) has brightened, providing the following unfiltered CCD magnitudes: Dec. 9.746 UT, 16.5 (revised); 11.995, 15.9; 12.900, 15.9. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 December 15 (CBET 2077) Daniel W. E. Green