@DamienCallas The name of this large constellation means “serpent-bearer” in Greek. The ancient astronomer Ptolemy included Ophiuchus in his list of 48 constellations documented in the 2nd century. (It used to be referred to as Serpentarius, which is Latin and has the same meaning.) however, when I first published the zodiac book, people around that time thought that this constellation was going to move over the other zodiac signs and become the 13th sign. However, it did not and isn't a sign; some people still count this to be one in their own minds.