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A supernova remnant is now 4.55 pc in radius and is expanding at 3,350 km/s. Approximately how many years ago did the supernova occur?
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A supernova remnant is now 4.55 pc in radius and is expanding at 3,350 km/s. Approximately how many years ago did the supernova occur?
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Sep 1, 2024
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A supernova remnant is now 4.55 pc in radius and is expanding at 3,350 km/s. Approximately how many years ago did the supernova occur?
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Paul Hutchinson
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the supernova occurred 139 years ago
Quinton Smith
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Sep 7, 2024
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