2012CBET.3170....1P

G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 16.3) on an unfiltered image taken on June 6.16 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 19:12:08.21 ± 0".2, Decl. = -32:07:37.0 ± 0".2 (equinox 2000.0), which is about 7".9 west and 1".8 south of the center of the galaxy ESO 459-6. The variable was designated PSN J19120821-3207370 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012dl based on the spectroscopic confirmation reported below. Additional magnitudes for 2012dl: 2011 Mar. 25.32-2012 May 24.23, [20.0 (stack of fifteen 40-s CHASE images); 2012 May 24.23, [18.0 (CHASE); June 7.13, 16.4 (CHASE); 9.703, 18.5 (Joseph Brimacombe, Cairns, Australia; image taken with infrared filter; position end figures 08s.18, 37".5; image posted at website URL http://www.flickr.com/photos/43846774@N02/7356060622/); 18.716, 18.7 (Brimacombe; position end figures 08s.31, 37".1; image posted at website URL http://www.flickr.com/photos/43846774@N02/7496901246/).