11 Boötis
11 Boötis is a spectroscopic binary located in the northern constellation Boötes, the herdsman. With an apparent magnitude of 6.22, it is barely visible to the naked eye even under ideal conditions. The system is located relatively close to the Solar System at a distance of 332 light years, and it is drifting closer with a heliocentric radial velocity of. At its current distance, 11 Boötis' brightness is diminished by an interstellar extinction of only 0.03 magnitudes, and it has an absolute visual magnitude of +1.44.
The visible component has a stellar classification of A7V, indicating that it is an A-type main-sequence star. It has 1.94 times the mass of the Sun and a slightly enlarged radius of. It radiates 63.6 times the luminosity of the Sun from its photosphere at an effective temperature of, giving it a white hue when viewed in the night sky. 11 Boötis is slightly metal deficient with an iron abundance 95.5% that of the Sun, and it spins rapidly with a projected rotational velocity of. It is estimated to be 914 million years old. According to Gaia DR3 models, 11 Boötis is a single-lined spectroscopic binary. Both components take 142.54 days to circle around each other in an eccentric orbit.