The Sky at Night
Season 4, Episode 3: Why Stars Twinkle
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Patrick Moore explains how the atmosphere interferes with the astronomer's work. He discusses with Dr. Hugh Butler of the Royal Observatory, Edinburgh, how a satellite could be an astronomical observatory.
All Episodes - Season 4
Episode 1
The Great Spiral
Episode 2
Uranus
Episode 3
Why Stars Twinkle
Episode 4
Visitor from Space
Episode 5
Star Clouds of Sagittarius
Episode 6
Other Moons
Episode 7
Celestial Fireworks
Episode 8
Measuring the Universe
Episode 9
Moonscape
Episode 10
Make-up of the Stars
Episode 11
Astronomy in Russia
Episode 12
Tektites
Episode 14
Episode 14