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Geography, 18.08.2019 20:30 postorivofarms

One light year is about 9 trillion kilometers. arcturus is a star that is 37 light years from earth. if you are about 11 years old now , how old will you be when light that is leaving. arcturus today reaches earth

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One light year is about 9 trillion kilometers. arcturus is a star that is 37 light years from earth....
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