The apparent thirteenth star sign, Ophiuchus, is not a hoax. It is a recognised constellation that predates the popular system of the twelve zodiac signs. However, the concept of the zodiac is largely based on Babylonian astrology and has been in use for thousands of years. Due to the precession of the Earth's axis, the exact dates associated with each zodiac sign have shifted over time. Ophiuchus is located between Scorpius and Sagittarius in the night sky but was not considered a zodiac sign in the traditional Babylonian system, most likely due to its awkward shape and the desire for twelve, even divisions of the sky. While Ophiuchus may not be commonly recognised as a zodiac sign, it remains a significant constellation in the realm of astronomy and astrology.