SNR 0509-67.5 is a remnant from a supernova in the Large Magellanic Cloud (LMC), that is 160,000 light years away in the constellation Dorado.

It was probably a type Ia supernova, as indicated by the detection in 2004 of the elements silicon and iron.

Researchers at the Space Telescope Science Institute in Baltimore, Md.

have identified light from the supernova that was reflected off of interstellar dust, delaying its arrival at Earth by 400 years, allowing scientists to study the initial blast.

By virtue of the color signature, astronomers were able to deduce it was a Type Ia supernova.