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NO!!!

The earth/moon system orbits the Sun in an ellipse.

The Sun is at one of the foci of the ellipse, NOT the centre of the ellipse. The other focus , may be thought of as a 'blind' focus.

Each year this ellipse does not quite 'close-up' , but slightly overlaps. This is due to the 'sling shot' effect of the Sun's gravity on the Earth/Moon system.

As a result, the Earth/Moon binary system is nearer to the Sun (perihelion) at one point in the year and further away at Aphelion.

Also not only does the ellipse not quite close up each year, but the elliptical orbit narrows and widens over a period of millenia. So sometimes the ellipse is long and narrow and at other times it is nearly circular, BUT NEVER a circle.

Coupled to this, the Moon orbits the Earth in a similarl manner, ; elliptical and the Earth at one of the foci , but the plane of its orbit is inclined at about 5 degrees to the plane of the Earth/Moon orbit about the Sun.

It is quite a beautiful but complex movement. However, it all obeys Newtonian Mechanical Laws.

We 'dance' through space.

NB 'Foci' is the plural of the noun 'focus'. 'Focuses' is from the verb 'to focus'.

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lenpollock

Lvl 17
3mo ago

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