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The secondary ellipse is highlighted in the drawing and is positioned with its center at the base center point of the static external structure. The secondary ellipse is mathematically derived from the principal ellipse as shown in the basic section of this work and its rotation angle is the opposite of that of the principal ellipse.

The graphics of the globe containing Earth's land areas is no longer being shown because for the majority of the geometric construction they are not required, leaving just the pure geometric shapes on the interactive drawing. However, it is worth remembering that what you are looking at on the screen is a moving picture of the Earth, taken from the center of the Sun, and represented by dynamic fundamental geometric shapes.

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Last edited: 3^{rd} July 2019