Ring Around Supernova 1987A (SN1987A) - December 7, 2001
Approximately 160,000 light-years away (49 kiloparsecs)
This image of the SN1987A ring is roughly 2.6 arcseconds wide. At the distance of the LMC, this represents 2 light-years (0.6 parsecs).
NASA, P. Challis, R. Kirshner (Harvard-Smithsonian Center for Astrophysics) and B. Sugerman (STScI)