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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asked Dec 6, 2023 86.8k views

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.

Mathematics
high-school

Vineet Singla asked

by Vineet Singla

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1 Answer

11 votes

37255.5 light hours ....

Sylwester answered Dec 11, 2023

by Sylwester

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