Well, normal miles or kilometers would be far too small for the scale of distance between stars.
It's basically like saying I am going to measure the whole Earth in inches. It is going to be quadrillions of inches. There is no way! Same with stars the number is too high and light years are easier.
Stars are not measured in light years. The distance between them is.
Light years
Light Years.
in light years
parsecs or light years
Light years or Parsecs
because the stars are very far away so the astronomers use light years
Usually such distances are measured either in light-years, or in parsecs.
usually the space is measured in light years
because the stars are very far away so the astronomers use light years
The distance to stars is measured in light years, which is the distance light travels in one year. The stars we see in the night sky are typically several light years away, with the closest star to Earth, Proxima Centauri, about 4.24 light years away.
The distance to stars is typically measured in light-years, which is the distance light travels in one year. Light-years are used because the distances to stars are vast and measuring in kilometers or miles would be impractical. For closer stars, distances can sometimes be measured in parsecs, which is another unit of distance based on trigonometric parallax.