Precession of the Equinoxes
- the Ages of the Earth -


precessional cycle


The precession of the equinoxes is what determines the movement of the Ages backwards through the constellations. It can be understood through the analogy of the Earth spinning like a top, with the Sun and Moon pulling on its equatorial bulge. This gravitational influence creates a wobble, resulting in the precession or the shifting of the equinoctial points with respect to the stars. The north celestial pole describes a small circle with a radius of 23.5 degrees around the north ecliptic pole, with a consequent westward drift of the equinoxes - the two points where the celestial equator crosses the ecliptic. This is not to be confused with the movement of the Earth respective to the ecliptic of the Sun that occurs every year around March 21st, a movement that ever recurs on that date. What is here spoken of is the greater circle upon which the "ayanamsha" or 'ascendant of the Earth' is traced, and which coincides with the annual equinoctial point every 25,920 years. Set against the backdrop of the Zodiac, it takes the Earth 25, 920 years to make a "Complete Round" of the 12 astrological signs and 2,160 years to complete one astrological Age.

The Precessional Cycle was described by the Greek astronomer Hipparchus, in the Second century BC. but it seems to have been known in the ancient Vedic culture as well. In past millennia, astrologer priests known as Rishis developed precise formulas for calculating the cosmic cycles, and wove their celestial equations into the fabric of their myths and legends. Principal among these cosmological parables was the "Line of Ten Avatars". According to tradition, Vishnu, one of the principle deities of the Hindu trinity takes birth at particular points in the cosmic cycle which correspond to the earth's passage through the 'Fixed' zodiacal ages. Vishnu appears every 6,480 years at the commencement of the signs of Taurus, Leo, Scorpio and Aquarius. He appears at the behest of a suffering world and comes to destroy evil and injustice and reestablish the eternal truths of the Sanatana Dharma. The Bhagavad Gita, one of India's most sacred scriptures, reveals something of this cosmic process in Krishna's dialogue with Arjuna. Krishna tells his disciple:

Modern civilization with its scientific bias may fine these ancient myths quaint and curious but to the seer, they are indispensable evolutionary symbols. They reveal where we are in Earth's developmental cycle and define the achievements which may be expected during any given age. Since every Age introduces a new archetypal element into the evolution, the symbols of that archetype allow the seer to 'rectify' the great procession of history in a way that sets each thing in its rightful place. With this "Gnostic Vision", one is able to move beyond the chaos of linear historical time into the integral vision of whole time in which our collective past becomes revealed as a 'Theophany'. Not in the general sense as the philosopher Hegel suggested, but in the specific order of things which reveals the timing, structure and purpose behind the Divine Will unfolding through the ages.

Critical to this Integral vision is the correct position of the "ayanamsha" or 'ascendant of the Earth in relation to the Zero degree Aries point. Significantly in our present century there are no less than five different estimates of the location of the Ayanamsha because Astronomers simply cannot agree on this most important measure. This dilemma is discussed in detail in the following excerpt of a letter from Patrizia Norelli-Bachelet to one of India's leading Astrologers*.

*Letter from Patrizia Norelli-Bachelet to S.K. Ramachandra Rao republished with permission.