Ophiuchus

Ophiuchus, The Serpent Holder, is a large constellation in the southern sky, just north of Scorpio and south of Hercules. Ophiuchus is a figure (red lines) holding a snake (yellow lines), with the tail in his right hand (the left hand in the sky) and the snake's head in his left hand (the right hand in the sky). Unfortunately, the snake's head is off the right side of the photo. Although made up of one 2nd magnitude and six 3rd magnitude stars, along with the 4th and 5th magnitide remainder, Ophiuchus is often overlooked because of the much more popular constellations, Aquila and Sagittarius to the East, and Scorpio to the South. Also, although nearly all of the constellation lies in the Milky Way, that ribbon of dusty light is substantially brighter through Sagittarius, just east of The Serpent Holder, as you can see in the lower left portion of this image. Rasalhague is a type A star, 47 light years from Earth, about 3 times the size of our sun and about 30 times as bright. Cebalrai is a type K giant star, 82 light years distant, 13 times the size of Sol and 62 times as luminous. Marfik is a type A binary system about 166 light years from Earth. Yed Prior is a type M giant star 170 light years away, which forms an optical double with Yed Posterior, a type G giant star 108 light years from our solar system. Sabik is a binary system containing two type A main sequence stars lying 84 light years from Earth.
Two nice open clusters can be found in The Serpent Holder, 4665 and 6633 - each can be seen on the image below as a faint smudge.
Ophiuchus is host to a large number of globular star clusters but all require a telescope to observe.