Precession of the Equinoxes, page 9
Readers who want to pursue these matters further might like to try these links to some useful web sites. It is not an exhaustive list and apologies to anyone I've missed. Using a search engine will reveal many more. (Links correct as of 26.July.2006.)
Precession of the Equinoxes - Crystalinks
Precession
- NASA Stargaze
Precession of the Earth's Rotation Axis - University of Tennessee
Vernal equinox, precession of the equinoxes, great year
The Royal Arch and the Precession of the Equinoxes
Elysian Astrology: Precession of the equinoxes