That is it takes 42 years for the light it emits to reach
Our nearest star (other than the Sun) is 4.2 light-years away. That is, it takes 4.2 years for the light it emits to reach Earth. How far away is it in metres? Give your answer to 3 sf.
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our nearest star other than the sun is 42 light-years away that is it takes 42 years for the light it emits to reach
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