What is light year
What is light year
Answers
A light-year, alternatively spelled lightyear, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46×1012 km), or 5.88 trillion miles (5.88×1012 mi).As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in a vacuum in one Julian year (365.25 days).[2] Because it includes the time-measurement word "year", the term light-year is sometimes misinterpreted as a unit of time.
Answer: A light year is a large unit in length that is used to measure the distance traveled by light in vacuum by one earth year which is 365.25 days. The light year is used to describe the astronomical distances.
1 light year= 9.46 trillion kilometers
Explanation:
The powerful satellites are used to identify distant objects which are far away from us in space, but it can be considered we are looking back in time.
when light travels at a speed of 3,000,000 km per second yet most the objects are still very far away. so it takes light to travel so much time to reach our earth.
the center of our solar system is the sun and it is also the nearest star to earth. the average time the light takes to travel from the sun to earth is 8.3 minutes.