... ESO, the European Southern Observatory . ... Travel and Contacts . ... Survey Telescopes . ... Stars@ESO . ... This chart shows the large constellation of Ophiuchus (The Serpent Bearer). In the southern part of this constellation there is a spectacular region of dark and bright clouds, forming part of a region of star formation. This chart, which shows all the stars easily seen with the naked eye on a dark and clear night, shows the location of Rho Ophiuchi, the brightest star in the region. ...