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#1
October 15th 03, 04:15 AM
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Betelgeuse versus Rigel
Rigel has a mag. of 0.2, Betelgeuse varies between 0.3 to 1.2. Why then is
Betelgeuse labelled as Alpha Ori, and Rigel is Beta Ori? - Shouldn't Rigel be the Alpha star since it's brighter? John. 
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