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It takes 3x10 years for a particular star to make one orbit around its galaxy. Assume that this star's orbit in its galaxy is circular with a...

It takes 3x10⁷ years for a particular star to make one orbit around its galaxy. Assume that this star’s orbit in its galaxy is circular with a diameter of 10⁴ light years. A light year is the distance that light travels in one year. There are about 5.859x10¹² miles in 1 light-year. Estimate how many miles this star travels in one year.

The star travels about _____ miles in one year.
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8441942-light years.docx

It takes 3x10 ⁷ years for a particular star to make one orbit around its
galaxy. Assume that this star’s orbit in its galaxy is circular with a
diameter of 10⁴ light years. A light year is...

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