Mu Boötis is a wonderful triple system. Binoculars show the first companion (7.1) but you'll need a medium sized telescope to reveal that this companion also has its own companion (7.7 magnitude) with a 246 year orbit. The 2000 PA is 7º and the separation (2.1") is near its maximum.

Mu Boo is found by moving up the eastern edge of the kite-shaped asterism eleven degrees northwest of epsilon. In the same field is delta: binoculars.

You'll note that beta Boötis is in the same region, just out of view to the northwest.