Electronic Telegram No. 2070 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 2009lu, 2009md, 2009me, AND 2009mf T. N. Steele, M. T. Kandrashoff, and A. V. Filippenko, University of California, Berkeley, report that inspection of a CCD spectrum (range 350-1020 nm), obtained on Dec. 9 UT with the 3-m Shane reflector (+ Kast) at Lick Observatory, shows that SN 2009md (CBET 2065) is a type-II supernova. Cross-correlation with a library of supernova spectra using the "SuperNova IDentification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that 2009md is most similar to SN 2005cs at four days past maximum; the H-alpha emission component greatly dominates over H-alpha absorption. SN 2009mf (CBET 2067) is also a type-II supernova, again with highly dominant H-alpha emission; cross-correlation using SNID indicates that 2009mf is most similar to SN 2004et at two days before maximum. SN 2009me (CBET 2066) is a type-Ia supernova near maximum light; cross-correlation with SNID indicates that 2009me is most similar to SN 2003du at two days past maximum. A noisy spectrum of SN 2009lu (CBET 2044) indicates that it is also a type-Ia supernova; cross-correlation with SNID suggests an age of three weeks past maximum light. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 December 9 (CBET 2070) Daniel W. E. Green