\kappa Pegasi is a well-known , nearby triple star system .
It consists of a “ wide ” pair with semi-major axis 235 milli-arcseconds , one component of which is a single-line spectroscopic binary ( semi-major axis 2.5 milli-arcseconds ) .
Using high-precision differential astrometry and radial velocity observations , the masses for all three components are determined and the relative inclinations between the wide and narrow pairs ’ orbits is found to be 43.8 \pm 3.0 degrees , just over the threshold for the three body Kozai resonance .
The system distance is determined to 34.60 \pm 0.21 parsec , and is consistent with trigonometric parallax measurements .