Ophiuchus is a constellation situated within the northern hemisphere. Its identify is derived from the Greek phrase “” (phis), that means “serpent”, and “” (oukhos), that means “holder”. Ophiuchus is depicted as a person holding a serpent, and is usually related to the parable of Asclepius, the Greek god of therapeutic.
Ophiuchus is the thirteenth largest constellation within the sky, and is bordered by the constellations of Serpens, Hercules, Lyra, Aquila, Sagittarius, and Scorpius. The constellation accommodates a number of notable stars, together with Alpha Ophiuchi, which is a purple large star, and Beta Ophiuchi, which is a blue-white principal sequence star. Ophiuchus additionally accommodates a number of deep-sky objects, together with the globular cluster M9 and the planetary nebula NGC 6302.
