A light-year is the distance that light travels in a vacuum in one Julian year (365.25 days).

There are 100 centimeters in 1 meter.

In everyday terms, 50 million centimeters (or 500 kilometers) is a significant distance, but in terms of astronomical distances like light-years, it is extremely small.

This conversion is primarily for conceptual or educational purposes to highlight the vast difference in scale between human-scale measurements and the distances in space.