What is the distance in km of a star from the earth from which light takes 10 light years to reach us. Express the distance in parsec.
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Explanation:
For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!
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