Ophiuchus has its own significance in Astronomy, but as far as the astrological order goes, the Babylons decided on 12, one for each month of their calendar. 3,000 years ago. And that is what sticks.

Ophiuchus was one of the 48 constellations ... and it is also visible in the Southern Hemisphere during the winter months.

In the Ophiuchus galaxy cluster, astronomers spotted the largest explosion in the universe, and that explosion consisted of energy equivalent to a billion supernovae as it made a 1.5 ...