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staedtler staedtler
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7 years ago
If a supernova was first seen in the year of Christ's birth (the Star of Bethlehem?) and its distance from the Earth was 3 kpc, approximately when did the supernova actually explode?
   A)  10  B.C.    B)  3000 B.C.    C)  3 B.C.    D)  10,000 B.C.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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discovererdiscoverer
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7 years ago
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staedtler Author
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7 years ago
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