PROBLEM 106P

The nearest star is Alpha Centauri, at a distance of 4.3 light-years from Earth. A light-year is the distance that light travels in one year (365 days). How far away, in kilometers, is Alpha Centauri from Earth?

Solution 106P

Given :

The nearest star is Alpha Centauri, it is at a distance of 4.3 light-years from Earth.

Distance between Alpha Centauri and Earth in kilometers = ?

1 light year = 9.4611012 km.

Therefore, 4.3 light years in Km is :

= 4.3 9.461