2004IAUC.8405....3L

D. C. Leonard, A. Soderberg, A. Gal-Yam, B. Cenko, D. B. Fox, D. S. Moon, and D. J. Sand, California Institute of Technology, report that inspection of a preliminarily reduced CCD spectrum (range 550-900 nm, resolution 1.8 nm), obtained as part of the Caltech Core-Collapse Project (cf. http://www.astro.caltech.edu/~avishay/cccp.html) with the Palomar 5-m telescope on Sept. 9 UT, reveals that SN 2004eb (cf. IAUC 8396) is a supernova, most likely of type II. The spectrum, heavily contaminated by the underlying host galaxy, displays a blue continuum with broad emission-dominated P-Cyg features at the locations of H_alpha and He I 587.6-nm.