Iota Cygni Explained

The Bayer designation Iota Cygni (ι Cyg / ι Cygni) is shared by two stars, in the constellation Cygnus:

• ι¹ Cygni, dimmer (magnitude 5.75)
• ι² Cygni, brighter (magnitude 3.77), often simply called ι Cyg^[1]

Notes and References

1. Web site: Kappa, Iota Cygni . Jim. Kaler . 2016-05-19.