Astronomy and Space
Gamma Boötis is a binary star system in the northern constellation of Boötes the herdsman, forming the left shoulder of this asterism. Its name is a Bayer designation that is Latinised from γ Boötis, and abbreviated Gamma Boo or γ Boo. The primary component has the proper name Seginus, pronounced , the traditional name of the Gamma Bootis system. It has a white hue and is visible to the naked eye with a typical apparent visual magnitude of +3.03. Based on parallax measurements, it is located at a distance of 86 light-years, but is drifting closer to the Sun with a radial velocity of −32 km/s.
Kepler-11.
Epsilon Crateris.
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