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#1
December 7th 05, 11:23 PM
posted to alt.astronomy
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Distance to closest star?
I would appreciate if any one could enlighten me about how was alpha centauri determined to be the closest star. I am perfectly aware of the red shift as a valuable tool to measure distance of light sources, but... did the distance to ALL stars visible had to be measured before we could see which was the closest one? Impossible! So how then ?
Thank you very much. Walter Voigt 
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