The bust sculpture, an ancient Greek astronomer, takes into account the number of controlled faces, and the number of reserved faces can be used to further process the details, which can be used for 3D printing the portrait.Claudius Ptolemy was a Greek mathematician, astronomer, geographer and astrologer. He lived in Alexandria, and he had a Latin name, which several historians believe implies that he was also a Roman citizen. He quotes Greek philosophers and uses Babylonian observations and Babylonian theories of the moon.