Electronic Telegram No. 1934 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 2009im IN NGC 1355 K. Ayani, Bisei Astronomical Observatory (BAO); and H. Yamaoka, Kyushu University, report that low-resolution spectra (range 400-750 nm; resolution 0.5 nm at H-alpha) of 2009im (cf. CBET 1925), obtained with the BAO 1.01-m telescope on Aug. 31.8 UT, show that it is a type-Ia supernova around maximum. The absorption minimum of the Si II 635.5-nm feature is blueshifted by about 11300 km/s, assuming the recession velocity of NGC 1355 to be 3978 km/s (Maurogordato et al. 1991, A.Ap. 246, 39). The rather prominent Si II 580-nm feature implies that it is a somewhat-subluminous object. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 September 1 (CBET 1934) Daniel W. E. Green