Electronic Telegram No. 1589 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 2008hp Further to CBET 1581, A. J. Drake, R. Williams, A. Mahabal, S. G. Djorgovski, and M. J. Graham, California Institute of Technology; M. Catelan, Pontificia Universidad Catolica; E. C. Beshore, S. M. Larson, and A. Boattini, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the Catalina Real-time Transient Survey (CRTS) discovery of apparent supernovae in unfiltered Catalina Sky Suvey (CSS) images: SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008hp Nov. 22.43 9 43 26.22 +25 10 21.9 16.4 1" north The host galaxy, SDSS J094326.19+251020.7, has Gunn magnitudes u = 23.2, g = 22.7, r = 22.8, i = 22.7, z = 23.6. Additional magnitudes for 2008hp: Oct. 28.52 UT, [20.0 (CSS); Nov. 24.34, g = 16.7, r = 16.8, i = 17.4 (Palomar 1.52-m reflector + Gunn filters). E. Y. Hsiao, M. L. Graham, C. J. Pritchet, A. Parker, S. Sadavoy, and D. Balam, Department of Physics and Astronomy, University of Victoria, report that a spectrogram (range 390-703 nm, resolution 0.3 nm) of 2008hp, obtained on Nov. 26.44 UT with the 1.82-m Plaskett Telescope of the National Research Council of Canada, shows it to be a type-Ia supernova about 11 days past maximum light. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that 2008hp is most similar to the type-Ia supernova 1994ae at 11 days past maximum light. The redshift derived from this fit is 0.027. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2008 CBAT 2008 November 28 (CBET 1589) Daniel W. E. Green