This SN was discovered by LOSS
(IAUC 8422) on October 21, 2004, and was absent on October 6,
2004, so discovered rather young.
The host galaxy
is at z=0.006101 (NED).
Analysis of pre-discovery data by Itagaki (IAUC 8422) suggests a
young II-P. Conformed by spectoscopy from the 2.3 ANU telescope
reported by Salvo et al.