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Amazing Almaaz
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.when observing Saturn last Sat 17th a friend pointed out a star that seemed to be flashing different colours, no, not just twinkling.
I checked to see what it was with my new Celestron Skyscout (a great boon to beginners like me) and it identified it as Almaaz, which it tells me is 172 x the size of our Sun.
My question is why did it seem to be flashing and changing colours? blue and red were the most obvious.
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