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How long does it take a white dwarf star turn supernova?
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07-22-2008, 11:31 AM
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 How long does it take a white dwarf star turn supernova?
Lets look at sirus b a white dwarf star 8 light years away.If astromoners found out tomorrow that Sirus b was turning super nova.How long would that give us before the gamma rays from the super nova wipes us out.Will the people on the oppisite side of the earth from the gamma radiation receive the same amount of radiation and will going underground help save us.
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07-22-2008, 03:18 PM
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A white dwarf star will never turn supernova. It hasn't got enough mass. It takes a star at least 1.5 times the Sun's mass to go supernova. And scientists will never discover that a star is about to go supernova; it happens in seconds. If Betelgeuse were to to supernova tonight, it would do so in mere moments. Now, we wouldn't see it for 500 years, but when we did see it, it would go with virtually no warning. |
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