The tilt of Earth with radius \(6.371 x 10^3 km\) should not make a difference given the difference in distance between perihelion and aphelion of the orbit.
Why is Summer hotter when Earth is further away from the Sun, than Winter?
The proposed answer: Redistribution of charges on the surface of Earth as the result of Earth's core being displaced slightly by the Sun. Earth's core and the Sun interact as two hot bodies that repel each other.
This displacement results in a relative redistribution of the charges on the surface and \(H^{+}\) from the Sun is deflected towards the Summer side, to the relatively negative surface.
\(H^{+}\) burns up in the lower atmosphere rich in \(O_2\) and creates a summer condition.
The core is believed to be positively charged but the relative increase in \(H^{+}\) reaching Earth's surface can also be explained by the strengthening of Earth's magnetic field nearer to the spinning core now displaced from the center. \(H^{+}\) are deflected away by the magnetic field.
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