2010CBET.2184....1P

G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 15.9 ± 0.3) on an unfiltered image taken on Feb. 22.06 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 15.6 ± 0.3 in an image taken on Feb. 23.01, is located at R.A. = 7:15:54.65 ± 0".1, Decl. = -57:20:36.9 ± 0".1 (equinox 2000.0), which is about 0".6 east and 0".2 south of the center of the galaxy ESO 162-17. Nothing is visible at this position on archival images taken on Feb. 10.11 and 17.11 (limiting mag 18.0).