The nearest star from us other than the sun is 4.3 light-years away from us. 1 light-year is the distance travelled by light in 1 year.
a)_ How long does it take the light from this sta to reach the earth?
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Proxima Centauri
The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. They are an average of 4.3 light-years from Earth. The third star is Proxima Centauri. It is about 4.22 light-years from Earth and is the closest star other than the sun.
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