Mercury is the closest planet to the sun at a distance of 36 million miles. The closest star to the sun is Proxima Centauri, which is 4.24 light years away. A light year is 5.9 x 10 to the 12th power. How many miles from the sun is Proxima Centauri?

Proxima Centauri is 2.478 x 10¹³ miles from Sun.

Explanation:

Distance of Proxima Centauri to sun = 4.24 light years

1 light year = 5.9 x 10¹² miles.

Distance of Proxima Centauri to sun in miles = Distance in light years x 5.9 x 10¹² miles

So, Distance of Proxima Centauri to sun in miles = 4.2 x 5.9 x 10¹² miles

= 2.478 x 10¹³ miles

So Proxima Centauri is 2.478 x 10¹³ miles from Sun.