12 Boötis
12 Boötis is a spectroscopic binary in the constellation Boötes. It is approximately 122 light years from Earth.
12 Boötis is a yellow-white F-type subgiant with an apparent magnitude of +4.82. It is a spectroscopic binary pair which orbit around its centre of mass once every 9.6045 days, with an estimated separation of 0.0035". The two stars have similar masses around, both are slightly hotter than the Sun and about twice as large.
A further companion, 12 Boötis B, was reported with a separation of approximately one arcsecond in 1989, but subsequent surveys have repeatedly failed to detect this companion.