How long does the precession of Earth take?
1 Answer
Feb 8, 2017
Great Year = 258 centuries, nearly.
Explanation:
Earth precession refers to the Earth's axial precession..
The Earth.s Pole-Pole axis revolves about the normal to the ecliptic (
Earth's orbital plane ) as axis, over a cone of semi vertical angle of
about 23.4^o. This not-easily-noticeable motion is slow and the
period of one revolution is nearly 258 centuries, This is called
Earth's precession.
Effect:
In the Calendar, Summer Solstice would gradually recede to
Winter Solstice, after 129 centuries.
Every year, the right-overhead Sun at the same equinox/solstice,
wherever it occurs, is delayed by about
