Question

One light year is 5.88 x 1014 miles so if star 5A is 5.417 x 1014 miles from planet X how many light years is it from Planet x to star 5A?

Answer 1

5.88 x 1014 miles = 1 ly.  

1 mile = 1/5.88 x 1014 ly.  

5.417 x 1014 miles = 5.417 x 1014 /5.88 x 1014 ly = 0.9213 ly