Electronic Telegram No. 1826 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 2009fi AND 2009fl T. N. Steele, X. Wang, I. K. W. Kleiser, and A. V. Filippenko, University of California, Berkeley, report that inspection of a CCD spectrum (range 330-1080 nm), obtained on May 31 UT with the 3-m Shane reflector (+ Kast) at Lick Observatory, shows that SN 2009fl (CBET 1823) is a 1991bg-like type-Ia supernova. After removal of the host galaxy recession velocity of 8820 km/s (Wegner et al. 1999, MNRAS 305, 259), the absorption minimum of the Si II 635.5-nm line is found to be blueshifted by 11000 km/s. Cross-correlation with a library of supernova spectra using the "SuperNova IDentification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that 2009fl is most similar to SN 1986G near maximum light. P. Challis, Harvard-Smithsonian Center for Astrophysics (CfA), on behalf of the CfA Supernova Group, reports that a spectrum (range 360-750 nm) of 2009fi (CBET 1821), obtained on June 1 UT by W. Peters with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a type-IIb supernova. Cross-correlation with a library of supernova spectra using the SNID code indicates that the spectrum of 2009fi best resembles the type-IIb supernova 1997dd around maximum light; the redshift, as measured from emission lines in the host galaxy (PGC 50294), is 0.015. Challis adds that a spectrum of 2009fl, also obtained on June 1 by Peters, shows it to be a type-Ia supernova; cross-correlation via SNID indicates that 2009fl is subluminous type-Ia supernova around 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 NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.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 June 1 (CBET 1826) Daniel W. E. Green