What phenomenon causes the discrepancy between astrological signs and astronomical constellations?

Answer

Precession of the equinoxes

The precession of the equinoxes, caused by a slow wobble in the Earth's axis, shifts the vernal equinox point westward, causing constellations to drift out of alignment with the traditional fixed astrological sign dates.

What phenomenon causes the discrepancy between astrological signs and astronomical constellations?

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