A tour of SN 1987A

A Supernova Visible From Earth in 1987 Just Gave an Unexpected Surprise to Astronomers Thanks to the James Webb Telescope

In 1987, the supernova explosion SN1987A was observed in the Ma... | Filo

The ring around SN 1987A (Figure 23.12) started interacting with material propelled by the shockwave from the supernova beginning in 1997 ( 10 years after the explosion). The radius of the ring is approximately 0.75 light-year from the supernova location. How fast is the supernova material moving. assume a constant rate of motion in km / s ?