Omicron Cygni
The Bayer designation Omicron Cygni (ο Cyg / ο Cygni) is shared by two or three star systems in the constellation Cygnus. Application of the superscripts to the three stars varies in different publications; the Flamsteed designations are unambiguous:
- ο1 Cygni: 31 Cygni, sometimes 30 Cygni
- ο2 Cygni: 32 Cygni, sometimes 31 Cygni
- ο3 Cygni: sometimes 32 Cygni
{{Set index article |astronomical objects}}