2012CBET.3095....2T

L. Tomasella, P. Ochner, A. Siviero, S. Benetti, E. Cappellaro, A. Pastorello, M. Turatto, and S. Valenti, Osservatorio Astronomico di Padova, Istituto Nazionale di Astrofisica, report that a spectrogram of PSN J13152890+6207478 = SN 2012by, obtained on Apr. 27.88 UT with the Asiago 1.82-m Copernico Telescope (+ AFOSC; range 340-820 nm; resolution 2.4 nm), indicates that this is a type-II supernova. Broad P-Cyg lines of H and He I 587.6-nm are clearly detected. Adopting for the host galaxy (UGC 8335) a redshift z = 0.0308 (Kim et al. 1995, Ap.J. Suppl. 98, 129; via NED database), the comparison with a library of supernovae spectra via GELATO (Harutyuyan et al. 2008, A.Ap. 488, 383) shows that 2012by is similar to SN 1996as at a few days after the explosion.