Question

why is the distance between star and planet expressed in light year​

Answer 1

Answer:

here is your answer

Explanation:

distance between the star and the earth is the distance light would travel in eight years.

hope it helps you

Answer 2

Answer:

The distance between planets and stars are too far.... and the speed of light is fast. So the distance between planets and stars are expressed in light years...it means how many years would light need to reach there.