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Sun, Moon and Earth

43 43 the circle of notherly pole stars caused by precession 42 the PreceSSIonal cycle throwing a 26,000 year wobbly The Earths axis will not point to the present pole star for ever. Like a spinning top that has tilted over a little and begun to wobble or precess, the axis describes a complete circular rotation over about 25,920 years, tracing out the northern and southern circle of pole stars over this period. This is the precessional cycle, also known as a Great Year opposite. Equinoxes occur when the axial tilt of the Earth is at right angles to the Sun rather than facing towards or away from it see page 9. This tilt is itself rotating backwards very slowly, and the stars behind the Sun, on a given day of the year, change very slowly over time. The Age of Pisces commenced in 1 AD. The Age of Aquarius, the next Great Month, will commence about 2160 AD when, at spring Equinox, the stars behind the Sun are those of the constellation of Aquarius. Magically, the diameter of the Moon is 2160 miles, evoking the 2160 year length of the Great Moonth in the Western tradition. Space becomes time The ancient Maya had a slightly different value for precession, reckoning it at five of their 13 Baktun 5,200year Long Counts, or 26,000 years. The modern observed value is 25,770 years. In a human lifetime, precession is experienced as a single degree change in the position of the Sun against the fixed stars on a given date in the year. The precessional effect is caused by orbital asymmetries of the Sun and Moon. The Earths axial tilt itself varies between 21.5o and 24.8o, taking 41,000 years to cycle.
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