Tag Archives: elliptical orbit

Earth At Its Closest to Sun For ALL Of 2017 — Evening Of Wednesday, January 4.

by Anura Guruge

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This happens, like clockwork, each and every year.

It has to do with the Earth’s orbit, around the Sun, being an ellipse (as is nearly all orbital paths in the Solar System). With any and all elliptical orbits you always have a closest and furthest point from the object being orbited. These are known (by the Latin) Perihelion & Aphelion.

Earth’s Perihelion with the Sun occurs in January. The Aphelion in July. In each case it is about 2 weeks after the last Solstice. This is how things are right now. Kind of a coincidence.

But it means that the Southern Hemisphere ALWAYS gets a bit closer to the Sun than the Northern. In other words, when the Northern Hemisphere is tilted towards the Sun, the Earth is at its furthest. C’est la vie.

Anywho. In 2017, Perihelion was on January 4th.

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by Anura Guruge