Stellar distances and light travel time: Alpha Centauri to Earth. Alpha Centauri is the nearest star system after the Sun; estimate the time its light takes to reach Earth. Choose the correct option.

Q: Stellar distances and light travel time: Alpha Centauri to Earth. Alpha Centauri is the nearest star system after the Sun; estimate the time its light takes to reach Earth. Choose the correct option.

Reasoning Alpha Centauri is ~4.3 light-years away; 1 light-year is the distance light travels in one year. Final Answer About 4.3 years

Difficulty: Easy

About 4.3 years
About 8.3 minutes
About 1 year
About 4.3 minutes

Correct Answer: About 4.3 years

Explanation:

Reasoning

Alpha Centauri is ~4.3 light-years away; 1 light-year is the distance light travels in one year.

Final Answer
About 4.3 years

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