A simple illustration showing the basic elements of Ptolemaic astronomy. It shows a planet rotating on an epicycle which is itself rotating around a deferent...
[[:de:Benutzer:Captain Blood]] || |---- | 20:03, File:Battle_icon_gladii.svg licensed with PD-self 2010-03-08T12:08:05Z Pethrus 225x225 (15698 Bytes)...
