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?
Answers
Answer:
no other way to measure it
Explanation:
u cant measure the distance between the land where u are standing and the stars so they make a specific value and measure it
or it can be measured by astronomical unit
Answer:
Explanation: The distance between stars is very large and therefore it would be very problematic to express these distances with the help of units like km or metre etc. Ex- 4500000000km would be very difficult to write. Therefore we use a unit like light year or parsec(this is also a unit).
A light year is the distance travelled by light in one year
This statement means that a star is located at a distance from the earth which will take a light ray 8 years to reach(which is actually very far away as even light ray is taking 8 years to reach it)
Hope my answer will help
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