anonymous user


How far is 4000 light years away?

Topics: ScienceDistance & Length


Teresa Smith

A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers. The Crab supernova remnant is about 4,000 light-years away.

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How far is 4000 light years away?

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