Electronic Telegram No. 1825 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 SUPERNOVAE 2009fm, 2009fn, 2009fo, 2009fp, 2009fq Further to CBET 1815, A. J. Drake, S. G. Djorgovski, A. Mahabal, R. Williams and M. J. Graham, California Institute of Technology; D. Balam, Dominion Astrophysical Observatory, National Research Council of Canada; M. Catelan, Pontificia Universidad Catolica de Chile; E. C. Beshore, S. M. Larson, R. Hill, A. Gibbs, A. Boattini, and R. Kowalski, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the CRTS discovery of additional apparent supernovae in unfiltered Catalina Sky Survey (CSS) images: SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009fm Apr. 24.34 12 24 51.16 +24 35 02.9 19.3 1".1 E, 0".1 N 2009fn May 13.32 14 00 14.92 +20 17 29.9 19.4 0".2 E, 0".5 S 2009fo May 14.34 15 06 34.82 +21 51 15.1 18.4 0".9 W, 0".1 N 2009fp May 16.18 10 45 22.18 +10 57 17.0 18.5 0".5 E, 1".3 N 2009fq May 18.24 11 49 10.41 +34 24 52.5 19.1 0".6 W, 1".7 S The objects were followed with the Palomar 1.5-m telescope and the Plaskett 1.82-m telescope using Gunn filters. Further magnitudes for 2009fm: Mar. 28.27 UT, [20.2 (CSS); Apr. 27.35, g = 19.3, r = 19.3, u = 19.5 (Palomar); May 18.19, 19.4 (CSS). Further magnitudes for 2009fn: Apr. 23.38, [20.5 (CSS); May 14.17, g = 19.3, r = 19.4, i = 19.6 (Palomar); May 20.23, g = 19.5, r = 19.4 (Plaskett); May 21.22, g = 19.5, r = 19.4 (Plaskett); May 25.4, g = 19.7, r = 19.7 (Plaskett). Further magnitudes for 2009fo: Apr. 23.41, [20.6 (CSS); May 15.17, g = 18.4, r = 18.5, i = 18.6 (Palomar); May 21.26, g = 18.8, r = 18.9 (Plaskett); May 29.35, 18.6 (CSS). Further magnitudes for 2009fp: Mar. 15.25, [20.2 (CSS); May 25.24, g = 18.4, r = 18.4, i = 18.6 (Palomar); May 28.19, 18.2 (CSS). Further magnitudes for 2009fq: Apr. 21.20, [21.0 (CSS); May 3.24, 18.8 (CSS); May 20.22, g = 19.8, r = 19.1 (Plaskett); May 21.21, g = 19.8, r = 19.0 (Plaskett); May 24.24, g = 19.8, r = 19.2, i = 19.2 (Palomar); May 29.17, 19.7 (CSS). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 June 1 (CBET 1825) Daniel W. E. Green