Sentences with phrase «precession refers»

Precession refers to the fact that both Earth's rotational axis and orbital path precess (rotate) over time — the combined effects of these two components and the eccentricity produce an approximately 21,000 - year cycle.

Precession refers to changes in the time of the year when the Earth is closest to the Sun, with quasi-periodicities of about 19,000 and 23,000 years.

Not exact matches

Re my: (solar or lunar - driven precession itself can't (approximately) happen at those times when the sun or moon cross the equatorial plane)... refering specifically to the component of precession that is wobbling of the Earth's angular momentum vector in an inertial reference frame; another component comes from shifting of the semimajor axis.

For a completely carbon - dioxide - free reconstruction of the Vostok temperatures since 450 000 years refer to O. G. Sorokhtin (references on card n ° 7) chapter 4.4 pp. 180 - 190 Precession Cycles and the Earth Climate: it explains in detail and computes the quick de-glaciations observed by G.Roe and by Lisiecki & Raymo, with all the «saw - teeth».