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Originally Posted by Erg
Am I losing my mind?
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No.
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I was taught as a young fella in the 70s that the two Crux pointers were named Alpha and Beta Centauri. Not as Starry Night 6 tells me..Rigel Kentaurus and Hadir. I was getting used it in a “something’s not right” kinda way.
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They are both valid ways of referring to those particular stars. Alpha Centauri is the Bayer system and Rigil Kentaurus is its Proper Name, which it would have been give in ancient times.
Just stop and think about that for a bit - the Greeks knew the Centaur with two front feet, yet they can't see them from Greece today...a little example of the effect of precession for you.