Well, it is far easier to visualize "the distance light travels in 10 years" (i.e., 10 light years), than "9.5 x 1016 meters".
We use light years to tell us how fast light travels.
69 light years
Use this conversion: light-years x 9,460,730,472,580,800 = metres
Light years are used to measure distance from Earth to distant stars and planets.
Ypu have to use scientific notation to the 10th power
No - a light year is a unit of distance - not time so you can't convert.
Light-years
Light years
We use light years for the sake of easy readability. In the universe, most of the distances are in trillions of miles or so. You cant go writing that an object is 1400000000000000... miles from earth! To make it clear and concise, light year is the unit we use.
one way is how far light travles in a year , (light years)
Light years are used to measure the great distances of space. One light year is about 5.86 trillion miles. This is the distance light travels in one year's time.
You can use astronomical units or light years.