Question

How are Astronomical unit and light year related to each other?

Answer 1

1 AU = 1.496 $\times$ ${10}^{11}$ m

= $\frac{1.496\times {10}^{11}}{9.467\times {10}^{15}}$ = 15.8 $\times$ ${10}^{-6}$ light year

1 light year = 9.467 $\times$ ${10}^{15}$ m

= $\frac{9.467\times {10}^{15}}{1.496\times {10}^{11}}$ = 6.32 $\times$ ${10}^{11}$ AU