Electronic Telegram No. 170 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://cfa-www.harvard.edu/iau/cbat.html SUPERNOVA 2005cn IN NGC 5061 Further to IAUC 8530, C. Jacques reports the discovery by the Brazilian Supernovae Search Team (including also C. Colesanti, E. Pimentel, and T. Napoleao) of an apparent supernova (mag 14.6) on unfiltered CCD images taken on June 19.99 and 21.00 UT. The new object is located at R.A. = 13h18m00s.46, Decl. = -26o48'33".1 (equinox 2000.0), which is 62" west and 103" north of the center of NGC 5061. Nothing was visible at this location on a CCD image taken on Apr. 15.12 (limiting mag 19.0) or on a red Digitized Sky Survey image from 1992. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the formal IAU Circulars. (C) Copyright 2005 CBAT 2005 June 21 (CBET 170) Daniel W. E. Green