Zeta Hydrae is an orange giant (seven to ten times the size of the Sun) which forms the top of the neck of the Hydra, and is the brightest star in the asterism known as The Hydra's Head.

From amongst this group of stars epsilon Hydrae is the most remarkable, as it is a splendid multiple binary. Companion B is much too close for all but the largest of telescopes, for it has a very rapid orbit of 15.06 years.
     More accessible for medium and large telescopes is companion C, which forms a pleasing contrast of colours with the primary -- yellow and blue. The orbit is 990 years.

Putting zeta at the northwest edge, omega and theta are now visible, and you can proceed to examine the rest of the Hydra: binoculars.