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The first two months of spectroscopic and photometric monitoring of thenearby type Ic SN 2007gr are presented. The very early discovery (less than 5days after the explosion) and the relatively short distance of the host galaxymotivated an extensive observational campaign. SN 2007gr shows an average peakluminosity but unusually narrow spectral lines and an almost flat photosphericvelocity profile. The detection of prominent carbon features in the spectra isshown and suggest a wide range in carbon abundance in stripped-envelopesupernovae. SN 2007gr may be an important piece in the puzzle of the observeddiversity of CC SNe.

The carbon-rich type Ic SN 2007gr: the photospheric phase