Electronic Telegram No. 2286 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Room 209; Dept. of Earth and Planetary Sciences; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbat@iau.org; cbatiau@eps.harvard.edu URL http://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2010cu IN IC 883 = PSN K1002-1 S. Ryder, Anglo-Australian Observatory; and E. Kankare and S. Mattila, Tuorla Observatory, report that they obtained further observations of the apparent supernova found by them on Feb. 24.6 UT in the luminous infrared galaxy IC 883 (cf. CBET 2213). Observations on May 4.5 UT, again using NIRI and the ALTAIR laser guide-star adaptive-optics system on the Gemini North Telescope, show a source coincident in position with that reported previously to within 0".01, after subtraction of an image obtained with the same instrument on 2008 April 15.5. The K-band magnitude of 2010cu is approximately 18.5, consistent with near-infrared light curves of core-collapse supernovae (e.g., Mattila and Meikle 2001, MNRAS 324, 325). High-spatial-resolution follow-up observations at infrared and radio wavelengths are encouraged. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 May 18 (CBET 2286) Daniel W. E. Green