Electronic Telegram No. 352 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 2005nb IN NGC 7753 T. Boles, Coddenham, England, reports the discovery of an apparent supernova (mag 18.1) on an unfiltered CCD image taken on Jan. 2.856 UT with a 0.35-m reflector. The new object is located at R.A. = 23h47m03s.78, Decl. = +29o28'55".7, which is approximately 13".6 west and 5".1 south of the center of NGC 7753. A confirmation image was acquired via KAIT (Lick Observatory) by W. Li on Jan. 5.108; Boles provides the following position end figures for 2005nb from Li's image: 03s.81, 55".6. Traces of 2005nb are also visible on an unfiltered CCD image taken by G. Rogers (Long Crendon, England, 0.40-m reflector) on Jan. 4.794. Nothing is visible at the location of 2005nb on Boles' images from 2005 Oct. 10 and Sept. 24 (limiting mag 19.5) or on Digitized Sky Survey images from 1991 (limiting red mag 21.0) and 1993 (limiting blue mag 20.5). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2006 CBAT 2006 January 6 (CBET 352) Daniel W. E. Green