2004IAUC.8377....3R

M. Riello, European Southern Observatory (ESO), reports (together with G. Pignata, M. T. Botticella, F. Patat, S. Benetti, E. Cappellaro, M. Turatto, and S. Valenti) the discovery of two supernovae on CCD frames taken during a search performed with the Max-Planck-Institut 2.2-m telescope (+ Wide Field Imager) at the ESO. SN 2004 UT R.A. (2000.0) Decl. R z Type 2004dl July 14 14 11 11.50 -12 02 36.9 21.2 0.250 Ia 2004dm July 14 22 43 21.36 -40 19 46.7 21.6 0.225 Ib Nothing was visible at the above positions on reference images taken with the same equipment in May 2004 and November 2001 (limiting mag R about 23.5). Spectroscopic observations (range 600-1100 nm), obtained on July 22 with the ESO 8.2-m ANTU telescope (+ FORS2) show that, from a comparison with SNe 1992A and 2000H, the new objects appear both to be about 2 weeks past maximum light.