So there is a more complex motion involved than a simple rotation or circle, which makes it impossible for Earth to be considered as stationary or uniformly moving.

Note 8 About the periodicity ‘year’, contemporary physics has taught that if you leave the axis of rotation of the Earth perpendicular to its motion around the Sun, or vice versa, if you leave the plane of the circular motion of the Sun perpendicular to the axis of rotation of the Earth, each day would have exactly the same pattern and the motion would thus be uniform with respect to the Earth. But if the Earth's axis of rotation has a non-perpendicular angle with the plane of its orbit around the Sun, or vice versa if the plane of the circular motion of the Sun is non-perpendicular to the axis of rotation of the Earth, then the motion suddenly is no longer uniform with respect to the Earth. The points of the earth's surface are sometimes closer, sometimes further away from the Sun. It explains why the weather on the southern hemisphere of Earth is opposite to the northern hemisphere. The Earth's axis is currently at an angle of 23.44^o perpendicular to the Earth's orbit around the Sun.

The Earth's orbit around the Sun is affected by more phenomena; amongst others, the influence of neighbouring planets causes a slight stretch of the orbit making it slightly eccentric. Its shape changes over time, depending on the position of the planets relative to each other, and strengthens or weakens the effect of the seasons.

Another periodicity is caused by spinning: the angle of the axis relative to the orbit around the Sun changes constantly. The periodicity of this is set to at about 25800 years. In about 13,000 years, the North Star will be at approximately 47 degrees from the northern pole and not as close to it as it is now. This periodicity affects the climate.

In the geodesy, some more periodic and non-periodic motions of the Earth's are known. However, they are minimal and actually only play a role in satellite navigation.

On the basis of the this conclusion, the Sphere Observer had to admit that his frame of reference is unsuitable to serve as a frame of reference for subjective scientific observation. End of story, if it weren’t for ...…

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