Supernovas
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For a star to explode as a supernova it problably starts out with a mass of at least 10 times of our sun.  It evolves into a red supergiant.  Unless it loses a large amount of its mass, the star becomes unable to resist the force of gravity, the core collapses, blowing the star apart.

To view the details on each supernova/remnant, including how I imaged it, just click on the name or the image.

Messier 1

"Crab Nebula"

Supernova

SN1999A

in NGC 1637

All the images in this site are Copyright 1999 to Infinity by Kevin Hearst.
Commercial use of these images without the prior written consent or knowledge of the author is strictly prohibited..

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