Algol, now visible in the evening sky, was called 'The Demon Star' in ancient times. Certainly it is a most unusual star; periodically it seems to 'wink'. Patrick Moore discusses Algol, and explains its importance.
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Algol, now visible in the evening sky, was called 'The Demon Star' in ancient times. Certainly it is a most unusual star; periodically it seems to 'wink'. Patrick Moore discusses Algol, and explains its importance.