Mu2 Octantis

 
Mu2 Octantis (μ2 Oct) is a binary star system of two G-type main-sequence stars. It shares the designation μ with μ1 Octantis, from which it is separated by 50 arcminutes.
The primary star (A) is HD 196067, whose data is in the starbox. The secondary star (B) is HD 196068 (HIP 102128, LTT 8160), another G-type main-sequence star with an apparent magnitude of 7.18. Its effective temperature 5997 K, and its mass is . The two are gravitationally bound and separated at 17 arcseconds in our sky, corresponding to 740 astronomical units (AU). The binary semimajor axis is 932 AU.
Planetary system.
From 1998 to 2012, the system was observed using the CORALIE instrument, at the ESO's 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.