Why is Ophiuchus usually excluded from the traditional 12-sign zodiac used in astrology?

Answer

The original system was established long before precession shifted constellation positions relative to the tropical zodiac.

The ancient system relied on fixed divisions, and the subsequent shift in the stars' positions due to precession meant Ophiuchus's current location was outside the established framework.

Why is Ophiuchus usually excluded from the traditional 12-sign zodiac used in astrology?

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The Zodiac Constellations: Crash Course Kids #37.1 - YouTube

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