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STIS Chemically Analyzes the Ring Around SN 1987a

STIS Chemically Analyzes the Ring Around SN 1987a


Depicts: SN1987A
Copyright: Jason Pun (NOAO) and SINS Collaboration

The ring formed 30,000 years before the star exploded and so is a fossil record of the final stages of the star's existence. The light from the supernova heated the gas in the ring so that it now glows at temperatures from 5,000 to 25,000 degrees Kelvin.
Last Update: 1 September 2019
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25-Apr-2024 15:46 UT

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