2012CBET.3101....2I

C. Inserra and S. J. Smartt, Queen's University of Belfast; S. Valenti, A. Pastorello, E. Cappellaro, and S. Benetti, Istituto Nazionale di Astrofisica, Padova Astronomical Observatory; S. Benitez-Herrera and S. Taubenberger, Max-Planck-Institut fuer Astrophysik, Garching; M. Sullivan, University of Oxford; and R. Scalzo, Australian National University, on behalf of the PEESTO collaboration (see Valenti et al., as posted at website URL http://www.astronomerstelegram.org/?read=4037), report that an optical spectrum (range 360-910 nm) of PSN J18410706-4147374 = SN 2012ca, obtained on Apr. 29.40 UT (see http://www.astronomerstelegram.org/?read=4076) at the 3.6-m New Technolog Telescope (+ EFOSC2) at La Silla, shows it to be a type-IIn supernova. Adopting a recession velocity of 5834 km/s for ESO 366-G9 (Strauss et al. 1992, Ap.J. Suppl. 83, 29; via NED), the best fit to this spectrum found by GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; publicly available at https://gelato.tng.iac.es) is with the spectrum of the type-IIn supernova 1997cy at about 20 days from the presumed explosion epoch.