2011CBET.2881....2M

G. H. Marion, Harvard-Smithsonian Center for Astrophysics (CfA), on behalf of the CfA Supernova Group, report that a spectrum (range 340-740 nm) of PSN J23275551+0846457 = SN 2011hb was obtained on Oct. 28 UT by P. Berlind with the F. L. Whipple Observatory 1.5-m telescope (+ FAST). Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows that 2011hb is a type-Ia supernova several days before maximum light. SNID finds that the best fit is to a template from the normal type-Ia supernova 2005cf at -10 days. The Si II 635.5-nm feature is broad and asymmetrical; an estimated redshift of z = 0.028924 for NGC 7674 (Nishiura et al. 2000, A.J. 120, 1691) is used to measure the velocity at the minimum of this feature to be about 14700 km/s.