![A light year (ly) is a unit of distance defined as the distance light travels in one year. Numerically, 1 ly= 9 500 000 000 000 km. How many metres are in a light year? A light year (ly) is a unit of distance defined as the distance light travels in one year. Numerically, 1 ly= 9 500 000 000 000 km. How many metres are in a light year?](https://doubtnut-static.s.llnwi.net/static/web-thumb/645590290_web.png)
A light year (ly) is a unit of distance defined as the distance light travels in one year. Numerically, 1 ly= 9 500 000 000 000 km. How many metres are in a light year?
![One light year is equal to the distance traveled by light in one year (through empty space). One light year = 1 ly = 6 trillion miles = 9.5 trillion. - ppt download One light year is equal to the distance traveled by light in one year (through empty space). One light year = 1 ly = 6 trillion miles = 9.5 trillion. - ppt download](https://slideplayer.com/slide/14734682/90/images/4/Calculating+a+light+year.jpg)
One light year is equal to the distance traveled by light in one year (through empty space). One light year = 1 ly = 6 trillion miles = 9.5 trillion. - ppt download
Earth Shaker - #AstroMeme How far is far? We often measure distances in space using astronomical units (AU) and light-years (ly) because of the superb distances. 1 Astronomical Unit (AU) - average
![Powers of Ten” Although our Universe is very, very big, the stuff of which it is made is very, very small ppt download Powers of Ten” Although our Universe is very, very big, the stuff of which it is made is very, very small ppt download](https://slideplayer.com/slide/15453744/93/images/12/1012+%3D+1%2C000%2C000%2C000%2C000+1+light+year+%3D+9.46+%C3%97+1012+km+%3D+300%2C000+meters+per+second.+%28the+speed+of+light%29+%C3%97.jpg)
Powers of Ten” Although our Universe is very, very big, the stuff of which it is made is very, very small ppt download
![A light year (ly) is a unit of distance defined as the distance light travels in one year. Numerically, 1 ly= 9 500 000 000 000 km. How many metres are in a light year? A light year (ly) is a unit of distance defined as the distance light travels in one year. Numerically, 1 ly= 9 500 000 000 000 km. How many metres are in a light year?](https://d10lpgp6xz60nq.cloudfront.net/question-thumbnail/en_645590290.png)