Question

WHY IS THE DISTANCE BETWEEN STARTS EXPRESSED IN LIGHT YEARS? WHAT DO YOU UNDERSTAND BY THE STATEMNETS THAT A STAR IS EIGHT LIGHT YEARS AWAY FROM THE EARTH??​

Answer 1

Answer:

The distance between the stars and earth is millions of kilometres, are very far from the earth. The large distances areexpressed in light years. ... This means that the distance between the star and the Earth is equivalent to the distance travelled by lightin eight years.

Explanation:

Stars are millions of kilometresaway from the earth. ... So the distance of stars from the earth is expressed in timetaken by light to travel in one year. Eight light years means time taken by light to travel ineight years.

Answer 2

$\huge\red{ANSWER}$

The distance between the stars and Earth is millions of kilometres, are very far from the Earth. The large distance is expressed in light years.

1 light year ----->

$9.46 \times 10 {}^{12}$

A star is located at light years away from the Earth.

This means that the distance between the stars and the earth is equivalent to distance travelled by light in 8 years.

So the distance between the Earth and star =

$8 \times (9.46 \times 10 {}^{12}) = 7.6 \times 10 {}^{13} km$

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