This SN was discovered by the Nuclear Supernova Search Campaign
(K-band search in star burst galaxies, Mattila et al.)
(IAUC 8473) on January 18, 2005, and absent on December 24, 2004,
so discovered rather young.
The host galaxy
is at z=0.010300 (NED).
Spectrum reported by Modjaz et al. shows this is a young (few weeks from explosion) type II SN.