supernova progenitors

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#581303
Robin Leadbeater
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Yes extra galactic supernova progenitors are just faint stars among billions so until we get another supernova in our own galaxy, there are very few observations of supernova progenitors, mostly found in deep images eg archive HST images. All are of core collapse types as they are produced by luminous stars eg supergiant and Wolf Rayet stars, for example

https://www.spacetelescope.org/images/opo1847b/

The progenitor of sn 2017ein discovered by Ron Arbour

Robin