Apollo 13: 4. Power brokers
13 Minutes Presents: The Space Shuttle
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MUSIC - The Apollo Guidance Computer and Star Sightings
Spacecraft's orientation or attitude is all important for their guidance and navigation. Usually, they'd use the Apollo Guidance Computer and Star Sightings to determine their orientation using them like cosmic landmarks. But right now, they can't see the stars. All we could see was sun, the Earth and the Moon.
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