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 Epigonos he was the last living child of the Diadochus Lysimachus. At an unknown date, perhaps during his co-regency with Ptolemy II or in his rule over Telmessos, Ptolemy married an unnamed Greek aristocratic woman by whom he had two sons: Lysimachus of Telmessos who later succeeded him as the second Ptolemaic Client King of Telmessos and Epigonos of Telmessos. The identity of Ptolemy is perhaps the most confusing and controversial of Ptolemaic genealogy. Ptolemy is also identified as the following: Ptolemy Epigonos Ptolemy Epigonos ( "Ptolemaios I Epigonos", "Epigonos" i.e. the "heir", 299/298 BC–February 240 BC) was a Greek Prince