2004IAUC.8261....1H

M. Hicken, Harvard-Smithsonian Center for Astrophysics, on behalf of the ESSENCE project (cf. IAUC 8251, 8237, 8034, 8021), reports the discovery of ten supernovae on multiple R- and I-band images taken at the Cerro Tololo Blanco 4-m telescope during 2003 Dec. 13-29 by project members. Spectroscopy was obtained on Dec. 13-29 with the Gemini North and South telescopes (+ GMOS), the MMT (+ Blue Channel), and the Keck I telescope (+ LRIS), showing each to be of type Ia, with the exception of SN 2003lg, which is of type II. Each new supernova is within 1" of its host-galaxy center, except for 2003lg, which is 4".5 away. SN 2003 UT R.A. (2000.0) Decl. R z 2003le Dec. 13 1 08 08.73 + 0 27 09.7 22.7 0.6 2003lf Dec. 13 1 08 49.81 - 0 44 13.5 22.1 0.4 2003lg Dec. 13 1 13 32.68 - 0 36 57.3 22.5 0.2 2003lh Dec. 13 2 10 19.51 - 4 59 32.3 22.7 0.5 2003li Dec. 13 2 27 47.29 - 7 33 46.2 22.8 0.5 2003lj Dec. 15 1 12 10.03 + 0 19 51.3 22.1 0.4 2003lk Dec. 15 2 11 12.82 - 4 13 52.1 22.8 0.4 2003ll Dec. 15 2 35 41.19 - 8 06 29.6 23.2 0.6 2003lm Dec. 15 23 24 25.51 - 8 45 51.1 22.5 0.4 2003ln Dec. 15 23 30 27.15 - 8 35 47.0 22.9 0.6