Earth will reach its closest point to the sun ... Due to something that is called orbital precession, there is a gradually opening gap between the solstices and the peri and aphelions.

The main climatic effect of precession is to shift the season when the Earth has its closest pass to the Sun (perihelion) — the so-called precession of the equinoxes. Today, perihelion occurs in ...

"Circumbinary orbits that are polar or highly inclined to the Earth-Moon orbit are subject to two competing effects: nodal ...