Question

The next closest star to Earth, Proxima Centuri, is 4.25 lightyears away. How far is that in meters?

Answer 1

Answer:

4.0208 x 10^16 meters

Explanation:

speed of light in m/s   *      # seconds in a year      * 4.25 years =

2.99792 x 10^8   *        3600*24*365.25  *     4.25 = 4.0208 x 10^16 m