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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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9y ago

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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


What do light years measure in astronomy?

Light years measure distance in astronomy. It is the distance that light travels in one year, which is about 9.46 trillion kilometers.


How many years are in twenty light years?

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


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

light years


What are the units called that measure distances to stars?

They measure them in 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.


How to measure light years and what tools are used for this purpose?

Light years are a unit of distance used to measure vast distances in space. To measure light years, scientists use tools like telescopes and spectrographs to observe the light emitted by stars and galaxies. By analyzing the light's properties, such as its brightness and spectrum, scientists can calculate the distance to these celestial objects in terms of light years.


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.