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A light-year is a measure of distance, not time as many people mistakenly believe. One light-year is the distance light can travel in one year in the vacuum of space. One light-year equates to 5.8785 trillion miles.

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Q: What do light years measure?
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Related questions

If you are four years away from a place would you be 4 light years away?

No, 'years' is a measure of time and 'light years' is a measure of distance.


How would you measure the speed of light?

Light years


How many years are in twenty light years?

Zero. Light years are a measure of distance, not time.


What are the units called that measure distances to stars?

They measure them in light-years.


What unit of measure is used to measure the distance to the stars?

light years


How can you measure billions of light years?

Mathematicians do!


How many years in an one light years?

None. A light year is a measure of distance, not of time.


What unit would you use to measure the distances from stars?

To measure the distance of stars you have to measure by light years.


When should you use light years?

Light years are used to measure distance from Earth to distant stars and planets.


How many light years are equal to 4.5 billion years?

A light year is a measure of distance, not time. It is the distance light travels in a year.


How many years is 587 light years?

587 light years is a unit of distance, not time. It represents the distance that light travels in 587 years.


What are ways you measure space?

light years kilometers(on occasion)