The Strasbourg astronomical clock is located in the Cathédrale Notre-Dame of Strasbourg, Alsace, France. It is the third clock on that spot and dates from the time of the first French possession of the city. The first clock had been built in the 14th century, the second in the 16th century, when Strasbourg was a Free imperial city of the Holy Roman Empire.
The current, third clock dates from 1843. Its main features, besides the automata, are a perpetual calendar, an orrery, a display of the real position of the Sun and the Moon, and solar and lunar eclipses. The main attraction is the procession of the 18 inch high figures of Christ and the Apostles, which occurs every day at solar noon, while the life-size cock crows thrice.