Key Takeaways:
- The astrological sign Scorpio encompasses celestial regions belonging to both the constellations Scorpius and Ophiuchus.
- The Sun's transit through Ophiuchus exceeds its transit through Scorpius.
- Ophiuchus is not included in the astrological zodiac.
- The exclusion of Ophiuchus is attributed to its later charting in celestial maps compared to the Babylonian establishment of the twelve astrological signs.

The region of the sky associated with the astrological sign Scorpio includes stars from both Scorpius the Scorpion and Ophiuchus the Serpent Bearer. Surprisingly, the Sun spends more time in Ophiuchus even though it’s not among the 12 constellations of the astrological zodiac.
Astronomy: Roen Kelly
Ophiuchus is not part of the astrological zodiac because it first appeared in sky maps long after the Babylonians created the 12 signs and named them after constellations recognized at that time.
