Ophiuchus (the Serpent Holder) and the Serpent Ophiuchus is a large constellation located around the celestial equator. Its name is Greek and means " snake-holder", holding the constellation Serpens. The two constellations belong to the same myth. Ophiuchus represents Asclepius, the Roman Aesculapius, son of Apollo and Koronis.
From Rho to Zeta Ophiuchi and the Galactic Center - From the center of our Milky Way Galaxy in Sagittarius through the constellations of Scorpius and Ophiuchus, this southern field of view contains an assemblage of some of the most colorful nebulae in the sky; Rho Ophiuchi Nebula and the Dark River, reflection nebula vdB 99, Cat's Paw Nebula, Blue Horsehead Nebula, & emission nebula, Sh2-27 @rt. which occupies a swath of sky over 10 by 13 degrees. That's an area larger than 600 full Moons!