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Mu2 Octantis (μ2 Oct) is a binary system of two G-class yellow dwarf stars. It shares the μ with μ1 Oct, from which it is separated by 50 arcminutes.
The A star is HD 196067, noted in the starbox here. The B star is HD 196068 (HIP 102128, LTT 8160), "a G1 dwarf with an apparent magnitude V=7.18", temperature 5768 K, and mass 1.18 ± 0.07. The two are gravitationally bound and separated at 17 arcseconds in our sky, corresponding to 740 AU. The binary semimajor axis is 932 AU.
The metallicity of this system, data correlated to the presence of planets, is higher than solar ([Fe / H] ≈ +0.2).
Planetary system
From 1998 to 2012, the system was under observance from "the CORALIE echelle spectrograph at La Silla Observatory".
In 2012, a long-period, wide-orbiting planet was deduced by radial velocity around HD 196067. This was published in November. The planet has been pulled to an eccentric orbit by the B star HD 196068.