| Description | Humanoid, Bipedal |
| Size | Medium |
| Skin Pigment | ? |
| Hair | ? |
| Distinguishing Features | ? |
| Series | TOS: "Tomorrow is Yesterday" |
| Planet of Origin | Cygnet XII |
| Quadrant | Alpha (assumed) |
| Background | Unlike the custom of other Federation worlds, Cygnet society is dominated by women. Cygnet XII has been the site of a Starfleet ship repair and maintenance facility since at least 2267. |
| Editors Notes | Cygnet XII is included as a member under the assumption that Starfleet (especially in its militaristic heyday in the 2260s) wouldn't let a non-Federation world do an overhaul on a Starfleet vessel, much less the flagship Enterprise. |