Electronic Telegram No. 571 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 2006dn IN UGC 12188 Further to IAUC 8727, J. Schwehr and W. Li report the LOSS discovery of an apparent supernova (mag 17.8) on an unfiltered KAIT image taken on July 5.45 UT. The new object is located at R.A. = 22h47m37s.84, Decl. = +39o52'46".8 (equinox 2000.0), which is 4".5 east and 2".9 north of the center of UGC 12188. Additional KAIT magnitudes for 2006dn: 2005 Dec. 17.10, [19.0; 2006 June 9.49, [18.5; 26.49, 18.7. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2006 CBAT 2006 July 6 (CBET 571) Daniel W. E. Green