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An astronomical measure of distance is called:
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Kilometer
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Yard
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Light Year
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Metre
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A light year is a unit of distance used in astronomy to measure vast distances in space. It is defined as the distance that light travels in one year in a vacuum. Since light travels at a speed of approximately 299,792 kilometers per second, a light year is equivalent to about 9.46 trillion kilometers. This unit is used to describe the distance between stars, galaxies, and other celestial objects, as the distances in space are so vast that using kilometers or meters would be impractical.
