2000 year old Greek automaton showed movement of starts and planets

 The Antikera mechanism was discovered in a ship wreck in 1901. It was split into 82 fragments, only a third of the original survings, including 30 corroded bronze gearwheels. Scientists have reconstructed the mechanism and published an article in Nature.

It calculated the ecliptic longi-tudes of the Moon, Sun and planets; the phase of the Moon; the Age of the Moon; the synodic phases of the planets; the excluded days of the Metonic Calendar; eclipses—possibilities, times, characteristics, years and the heliacal risings and settings of prominent stars and constellations; and the Olympiad cycle. It has a a ring system with nine outputs—Moon, Nodes, Mercury, Venus, Sun, Mars, Jupiter, Saturn and Date—carried by nested tubes with arms supporting the rings.

The top picture shows the reconstruction, the bottom picture the original findings: