Can someone please help me anwser this astronomy question? - Freemason Hirams Travels Masonic Forums

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07-12-2008, 07:34 PM

Fred B

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Can someone please help me anwser this astronomy question?

The Crab Nebula is now about 1 parsecs in radius. If it was observed to explode in A.D. 1054, roughly how fast is it expanding? (Assume a constant expansion rate. Is that a reasonable assumption?)

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