Ptolemy or optical factors and those caused by judgmental factors. He offered an obscure explanation of the sun or moon illusion (the enlarged apparent size on the horizon) based on the difficulty of looking upwards. There are several characters or items named after Ptolemy, including: [[File:Ptolemaeus - Quadripartitum, 1622 - 4658973.tif|thumb|"Quadripartitum", 1622]] [[Category:Ptolemy| ]] [[Category:100 births]] [[Category:170 deaths]] [[Category:1st-century Romans]] [[Category:2nd-century Romans]] [[Category:2nd-century philosophers]] [[Category:2nd-century poets]] [[Category:Egyptian calendar]] [[Category:Ancient Greek astrologers]] [[Category:Ancient Greek astronomers]] [[Category:Ancient Greek mathematicians]] [[Category:Ancient Greek music theorists]] [[Category:Astrological writers]] [[Category:Claudii]] [[Category:Egyptian astronomers]] [[Category:Egyptian mathematicians]] [[Category:Epigrammatists of the Greek Anthology]] [[Category:2nd-century people of Roman Egypt]] [[Category:Ancient Greek geographers]]
Ptolemy of Mauretania Ptolemy of Mauretania Ptolemy of Mauretania (, "Ptolemaîos"; ; 13 9BC–AD40) was the last Roman client king and ruler of Mauretania for Rome. He was a member of the Berber Massyles tribe of Numidia; via his mother Cleopatra Selene II, he was also a member of Egypt's Ptolemaic dynasty as well. Ptolemy was the son of King Juba II and Queen Cleopatra Selene II of Mauretania. His birth date is not certainly known, but must have occurred before his mother's death, which has been estimated to have taken place in 5BC. He had a sister (possibly younger) who is evidenced