Question

"Light year" is a unit of distance used in astronomy; it is the distance that light can cover in one year. Calculate in km the light year.The star a-proxima of Centaur is at 4.3 light years from our solar system. It is the nearest star. Find its distance in km.

Answer 1

Given that one light year is approximately equal to 9.461 trillion kilometers, we can calculate the distance of Proxima Centauri, which is 4.3 light years away from our solar system:
Distance = 4.3 light years * 9.461 × 10^12 km/light year
Distance = 40.6433 × 10^12 km
Distance = 40.6433 trillion kilometers
Therefore, Proxima Centauri is approximately 40.6433 trillion kilometers away from our solar system.