Ophiuchus is a large constellation. It is sometimes referred to as the 13th zodiac sign. Serpentarius is another name for this sign. This sign (constellation) has long been known but more recently brought to light.
Including this sign into the so called zodiac (mazzaroth) as we know it throws all the other so called birth sign dates out of kilter. This means that you may be a sign other than what you thought. This does not matter in the grand scheme of things.
I digress here, though, because the bible strictly forbids fooling around with astrology.
Plasms 19 tells us that the zodiac depicts the gospel in the sky. This story was known by all populations throughout all the world in the former days. The devil has corrupted the story and blinded the folks with the ridiculous so called astrology because he does not want the truth to be revealed. Too bad devil. Revelation is at hand.
It is clear to me that Ophiuchus represents The Lord Jesus Christ and His victory over the serpent (Satan) as he lays hands on him to lock him up once and for all.