The Sky at Night · SEASON 19

Algol: The Winking Demon

Episode 3 · 1975-03-05

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Season 19Episode 3★ N/A/10
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Episode overview

Algol, the Demon Star, is now well on view during the evening. Every two-and-a-half days the star seems to give a long, slow ' wink.' Patrick Moore describes this remarkable eclipsing binary and explains its importance.

Season 19 episodes

1. Orion, the Hunter1975-01-06 2. The New Northern Hemisphere Laboratory1975-02-06 3. Algol: The Winking Demon1975-03-05 4. Astronomy of The Infra-Red1975-04-10 5. The Outer Planets1975-04-30 6. The Mysterious X-rays1975-05-30 7. The Hot Clouds of the Sun1975-07-01 8. The New Moon1975-07-28 9. The Galilean Satellites1975-08-28 10. The Origin of the Universe1975-09-23 11. New Star in Cygnus1975-10-22 12. The Rocks on Venus1975-11-12 13. The Search for Life in the Universe1975-12-10