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A model of the universe which placed the Earth at its centre. In the second century CE, Claudius Ptolemy advocated for a geocentric model and the system predominated well into the 16th century. Nicolaus Copernicus’s famous proposal of a heliocentric model of the universe – with the sun at the centre of the solar system – was considered by many at the time to be heretical or simply wrong. Astronomers such as Tycho Brahe continued to use the geocentric system.

A preview of Andreas Cellarius' star atlas depicting the location of the Earth encircled by the celestial circles.