Astrophysics (Index)About

near-Earth supernova

(supernova near enough to Earth to affect it)

The term near-Earth supernova refers to a supernova sufficiently near that it affects Earth. The distance cited is 10-300 parsecs: (I'm not sure if this depends upon the analysis or whether it depends upon the strength of the supernova.) Statistics are that roughly 20 supernovae have occurred within 300 parsecs within the last 11 million years, and typically one happens within 10 parsecs on average every 240 million years. Six stars within 300 parsecs are candidates for such a supernova, including Rigel and Betelgeuse.


(stars,supernovae,event type,transient type,Earth)
Further reading:
https://en.wikipedia.org/wiki/near-Earth supernova
https://ui.adsabs.harvard.edu/abs/2019BAAS...51c.410F/abstract
https://science.nasa.gov/science-news/science-at-nasa/2003/06jan_bubble

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