sentences:  The close companion Delta Cygni B is a yellow-white class F of the sixth magnitude (6.33) with a luminosity about 6 times that of the Sun, and a mass about 1.5 times the Sun's.The two stars orbit each other at an average distance of 157 AU and a period of 780 years.The much more distant third companion is an orange (class K) twelfth magnitude star, and only two thirds as massive.