One light-year is equal to about 5.88 trillion miles. Therefore, 10 light-years is 58,787,928,497,574.1641 miles.

Astronomers use light-years because the distances to stars and galaxies are so vast that using miles would result in incredibly large and unwieldy numbers.

Light travels at approximately 186,282 miles per second. In a year, it covers about 5.88 trillion miles.

Yes, 10 light-years is an extremely long distance, covering over 58 trillion miles. It's a significant measure in astronomical terms.