Astronomical clock
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An astronomical clock, horologium, or orloj is a clock with special mechanisms and dials to display astronomical information, such as the relative positions of the Sun, Moon, zodiacal constellations,
Astronomical clock by Novello Dondi Padova
The astrarium made by the Italian astronomer and physician Giovanni Dondi dell'Orologio showed the hour, the yearly calendar, and the movement of the planets, Sun and Moon. Above is a modern reconstruction in the Museo Nazionale Scienza e Tecnologia Leonardo da Vinci in Milan, Italy; it is about three feet high.
The Flemish courtier and bibliophile Louis de Gruuthuse in front of an astronomical clock. Henri Suso, Horloge de Sapience, 1470-1480
The Rasmus Sørnes Clock.
Astrarium
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An astrarium, also called a planetarium, is a medieval astronomical clock made in the 14th century by Italian engineer and astronomer Giovanni Dondi dell'Orologio. The Astrarium was modeled after the
Astronomical clock
…Astrolabe Astrarium Clock of the Long Now, also called the 10,000-year clock…
Marine sandglass MMM