Tags: Star.
Epsilon Boötis (ε Boo ε Boötis) is a double star in the northern constellation of Boötes. It has the traditional names Izar and Pulcherrima. The star system can be viewed with the unaided eye at night but resolving the pair with a small telescope is challenging; an aperture of 76 mm (3.0 in) or greater is required.
