Ulysse Nardin Planetarium Copernicus
One single movement of mechanical excellence plus a stroke of pure genius
combine Ptolemy's geocentric universe with the Earth at its centre, and
Copernicus' heliocentric universe with the Sun at its centre.
This allows the reading of the astronomical positions of the planets in
relation to the Sun and the Earth. The moon rotates around the Earth.
A perpetual calendar indicating the months and the sign of the zodiac
completes one turn in 365.24 days at the exterior.
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