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symbo symbo
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8 years ago
A certain star in our arm of the Milky Way is measured to be about 750 pc from the Earth.  Expressed in light-years, this is approximately
   A)  1500 ly.    B)  4.7 × 107 ly.    C)  230 ly.    D)  2445 ly.
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Discovering the Universe

Discovering the Universe


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hyponoticahyponotica
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