Thursday, July 5, 2012

Answer to Question 19

A 19: Proxima centauri.

It is Proxima Centauri, the nearest member of the Alpha Centauri triple star system to the earth
Light takes only 4.22 years to reach us from Proxima Centauri
It is so faint that it was only discovered in 1915 and is only visible through a telescope. 

1 comment:

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