SN 2004em:<br>
<br>
This SN was discovered by Mark Armstrong 
<a href="http://cfa-www.harvard.edu/iauc/08400/08406.html#item1"> 
(IAUC 8406)</a> on September 14, 2004. Filippenko et al. 
<a href="http://cfa-www.harvard.edu/iauc/08400/08411.html#item1"> 
(IAUC 8411)</a> find it is a type II event, shortly after explosion.<br>
<br>
The host galaxy 
<a href="http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=ic+1303&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES">IC 1303</a> 
is at z=0.014894 (NED).<br>
<br>
<br>