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| View Original: | Almagest-planets.svg (620x540) | |||
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| Keywords: Almagest-planets.svg en Diagram of the geocentric epicyclic planetary model used in the w en Almagest to describe the longitudinal motion of Venus Mars Jupiter and Saturn The Earth is represented by Š• and the planet is represented by ˜‰ The direction A is fixed and the lines labeled e R and r are fixed in length The angles and increase at a constant rate with time The direction M points towards the mean position of the planet own Spacepotato 2011-01-28 Astronomical diagrams Almagest | ||||
