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The speed of light is approximately 3 x 10^8 km/s. Alpha Centauri is a red dwarf star which is approximately 4.2 x 10^13 km from Earth. How long would it take light to travel from Alpha Centauri to Earth?
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12 votes
The speed of light is approximately

3 x 10^8 km/s.

Alpha Centauri is a red dwarf star which is approximately 4.2 x 10^13 km from Earth.

How long would it take light to travel from Alpha Centauri to Earth?

Give your answer to the nearest hour.​

User Vineet Singla
by
8.2k points

1 Answer

11 votes

37255.5 light hours ....

User Sylwester
by
9.1k points
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