Our Seasons
Well, they are wrong, back to the drawing board. Since it is Summer in Australia when it is Winter in Europe and vice versa, the Earth`s distance from the Sun is not the cause of our Seasons.
Seasons are caused entirely by the TILT or axial shift of the Earth during its own normal axial rotational orbit around the Sun. The axial shift is mathematically precisional and is constant for every year and every orbit.
The Earth tilts 23.44 degrees on its rotational axis around the Sun perpendicular to Polaris (the North Star).
I think I`ll have a beer.