Meanings (ES + gloss)
precesión de los equinoccios
The slow westward shift of the equinoxes along the plane of the ecliptic, resulting from precession of the earth's axis of rotation, and causing the equinoxes to occur earlier each year.
Some three thousand years ago (owing to the Precession of the Equinoxes) that star at the winter solstice did not stand at midnight where you now see it, but almost exactly ON the…
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