Why is the distance between stars expressed in light years ?What do you understand by the statement that a star is Eight light years away from the earth?
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Why is the distance between stars expressed in light years ?What do you understand by the statement that a star is Eight light years away from the earth?
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The stars are very far away from the Earth and it is not convenient to express such distances in kilo¬metres. Thus, such large distances are expressed in unit known as light year.
If we say that a star is eight light years away from Earth, it means that the light from star will reach the Earth in eight years.
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