System View (3D Orbits)
Earth View (Celestial Sphere)
Ptolemaic System
Deferent Geometry
Radius (R)
80
Eccentricity (e)
6.0
Earth-Center distance. Equant is 2x further.
Epicycle Geometry
Radius (r)
10
Motion (Speeds)
Deferent Speed
0.1
Epicycle Speed
1.0
Third Dimension (Inclinations)
Deferent Inclination
-7.0°
Epicycle Inclination
7.0°
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Earth (Center)
Deferent Center (M)
Equant (Q)
Epicycle Center (C)
Planet (P)