Tags: Star.
Zeta Cygni (ζ Cyg) is a binary star system in the northern constellation of Cygnus the swan. It has an apparent visual magnitude of 3.26. Based upon parallax measurements the distance to this star is about 143 light-years (44 parsecs).The primary component is a giant star with a stellar classification of G8 IIIp. Its most likely status is as a core-helium fusing giant star although it could be in transition to gianthood with a tranquil helium core.