Artist: Joos van Ghent
Artwork: Ptolemy
Description: This painting is a portrait of Ptolemy, a 2nd-century astronomer, mathematician, and geographer. He is shown holding an armillary sphere, a model of the universe that was used in ancient times to demonstrate the relative positions of the Earth, Sun, Moon, and stars.
Url: https://anartworkaday.zhouqingen.com/reference/master/Museum/Le Louvre/JoosvanGentPtolemy.avif
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