9 Cygni

9 Cygni is a binary star system in the constellation Cygnus, consisting of a G8 IIIa red clump giant as the primary and an A2 V main-sequence as the secondary.  Both are approximately 437 million years old. The primary fuses helium in its core, while the secondary is evolving off the main sequence. There is a combined apparent magnitude is 5.39.

The primary has 2.9 solar masses, a radius of 18.2 solar radii, and surface temperature of 8,625°F.

The secondary has 2.7 solar masses, radius of 3.5 solar radii, and surface temperature of 16,185°F.

The average distance from Earth is 594 light-years. Alternate names include HD 184759 (primary), HD 184760 (secondary), HIP 96302, and HR 7441.