The word 'Ophiuchus' might mean nothing to most people, but to astrology aficionados it  could have been the 13th zodiac sign ...

splitting the celestial sphere into 88 regions that constitute the modern constellations. The IAU did not set standards for the star patterns of the constellations, however. Even in the 21st ...

Ophiuchus was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern ...