Electronic Telegram No. 1544 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 2008gk H. Mikuz, Crni Vrh Observatory, reports the discovery by Stanislav Maticic of an apparent supernova (mag 18.2) on four unfiltered CCD images (bandpass roughly equivalent to the R band) taken around Oct. 20.74 UT with the 60-cm f/3.3 Cichocki reflector in the course of the Comet and Asteroid Search Program (PIKA) at Crni Vrh. The new object is located at R.A. = 18h53m04s.48, Decl. = +38o45'44".4 (equinox 2000.0; uncertainty about 0".2), which is approximately 7" west and 6" north of the center of a nearby presumed-host galaxy. An image of the new object has been posted at the following website URL: http://www.observatorij.org/Data/sn/PSN081020.jpg Four PIKA R-band archival images obtained around Sept. 9.80 under moonlit conditions clearly show this object at magnitude R = 17.7 +/- 0.1. Nothing is visible at this position on unfiltered archival PIKA images obtained on 2005 July 4 (limiting magnitude 18.5) or on several Digitized Sky Survey red and blue images from the Palomar Sky Survey. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2008 CBAT 2008 October 21 (CBET 1544) Daniel W. E. Green