How do you get to the moon once you launch into space? In 1969 they used this star chart. via slate
These star charts were part of a guidance and navigation (G&N) dictionary carried by the Apollo 11 lunar module when it reached the moon’s surface on July 20, 1969.
Inside the module, the computer that provided navigation and guidance required astronauts to use a telescope to sight three stars, find their locations on the gridded star chart, and enter their numerical codes into the computer. Triangulating from this information, the computer would redirect the spacecraft onto a desired trajectory.
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