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The nearest star system to Earth, the Alpha Centauri star system, is 4.3 light-years away. How far is Alpha Centauri from Earth, in kilometers?

Express your final answer in scientific notation.

Answer :

Alpha Centauri, the nearest star system to Earth, is 4.3 light-years away, which equates to about 4.085 x 10^13 kilometers when converted to kilometers.

The nearest star system to Earth is the Alpha Centauri star system, which includes Proxima Centauri, and it is approximately 4.3 light-years away. To convert this distance into kilometers, we use the fact that one light-year is equivalent to about 9.5 trillion kilometers. Multiplying 4.3 by 9.5 trillion (or 9.5 x 10^12 km) gives us the distance in kilometers. Therefore, the distance from Earth to Alpha Centauri in kilometers is approximately 40.85 trillion kilometers, which is written in scientific notation as 4.085 x 10^13 kilometers.

Alpha Centauri is one of the most well-studied and well-known star systems beyond our own solar system. It is not only the closest star system, but it also includes Proxima Centauri, which is the single closest star to us.

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