Question

what do you mean by light year​

Answer 1

Answer:

IN ASTRONOMY IT MEANS

A unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 million million miles).

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Answer 2

Answer:

light year is the dustance traveled by light in 1 year . it's value in SI system is equal to 9.5 × 10 ^8 m