A light-year is the distance that light travels in a vacuum in one Julian year (365.25 days). It's a unit of astronomical distance.

There are 1,760 yards in one mile.

Because a light-year is an incredibly vast distance, covering trillions of miles. 500,000 yards is a relatively tiny distance in comparison, making the equivalent in light-years extremely close to zero.

This specific conversion (500,000 yards to light-years) is not typically used in everyday life due to the extreme difference in scale. It's primarily relevant in advanced astronomical calculations or for educational purposes to illustrate cosmic distances.