Final answer:
The light from Proxima Centauri takes about 4.22 years to reach Earth, indicating Proxima Centauri is about 4.22 light-years away from Earth.
Step-by-step explanation:
The light from Proxima Centauri taking about 4.22 years to reach Earth implies that Proxima Centauri is approximately 4.22 light-years away from Earth. The light from Proxima Centauri taking about 4.22 years to reach Earth implies that Proxima Centauri is approximately 4.22 light-years away from Earth. Since a light-year is the distance that light travels in one year, and considering that light travels at a speed of approximately 300,000 kilometers per second, you can determine how far away Proxima Centauri is. This indicates that Proxima Centauri is about 4.22 times 9.461 x 1012 kilometers away from Earth, which is the distance light travels in a year.Since a light-year is the distance that light travels in one year, and considering that light travels at a speed of approximately 300,000 kilometers per second, you can determine how far away Proxima Centauri is. This indicates that Proxima Centauri is about 4.22 times 9.461 x 1012 kilometers away from Earth, which is the distance light travels in a year.