Electronic Telegram No. 1250 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 2008ae IN IC 577 S. Blondin, Harvard-Smithsonian Center for Astrophysics (CfA), on behalf of the CfA Supernova Group, reports that a spectrogram (range 350-740 nm) of 2008ae (cf. CBET 1247), obtained by M. Calkins on Feb. 10.35 UT with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a peculiar type-Ia supernova around one week before maximum light. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that 2008ae is most similar to the peculiar 2002cx-like type-Ia supernova 2005hk (Phillips et al. 2007, PASP 119, 360) at 4 days before maximum. The spectrum consists of a blue continuum with P-Cyg profiles of high-ionization lines characteristic of the overluminous type-Ia supernova 1991T (cf. IAUC 5239, 5251); yet the discovery magnitude of 17.8 corresponds to an absolute magnitude of -17.7 (assuming the galaxy is in the Hubble flow and the supernova suffers negligible extinction), similar to underluminous, 1991bg-like supernovae at a similar age. This was also the case for the peculiar supernova 2005hk (cf. IAUC 8625, CBET 268), which confirms the resemblance between the two events. Adopting a recession velocity of 9022 km/s for the host galaxy (from The Updated Zwicky Catalog, http://tdc-www.harvard.edu/uzc/), the maximum absorption in the weak Si II line (rest 635.5 nm) is blueshifted by roughly 7900 km/s, while the maximum absorptions in the Fe III lines (rest 440.4 and 512.9 nm) are blueshifted by roughly 8700 and 6700 km/s, respectively. These relatively small blueshifts are characteristic of 2002cx-like supernova events. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2008 CBAT 2008 February 10 (CBET 1250) Daniel W. E. Green