SN 1996cr
SN 1996cr is located about 25" South of the nucleus of the Circinus Galaxy.
For more information see
Chandra 2008 Press Release
"Supernova 1996cr: SN 1987A's Wild Cousin?"
by Bauer et al., ApJ (2008).
"Bursting SN 1996cr's bubble: hydrodynamic and X-ray modelling of its circumstellar medium"
by Dwarkadas, Dewey & Bauer, MNRAS (2010).
Chandra and HST composite image.
dd @ space.mit.edu