 The latter is heating the nearest side of the circumstellar gaseous disk that surrounds the primary.Orbiting the primary pair is 59 Cyg Ab, a magnitude 7.64 A-type main-sequence star of class A3V, located at an angular separation of .A fourth component is a magnitude 9.8 A-type giant star of class A8III at a separation of along a position angle (PA) of 352°, as of 2008.