Eta Seratorn was a star system, located somewhere in the space of the galaxy's Alpha or Beta Quadrants, in Federation space at coordinates 0.26S 2.17W. Eta Seratorn's orbit was the location of a planetary system, including the world Terra 5. (FASA RPG module: The Federation)
- The stellar notation using the Greek language letter "eta" indicates that there might be a star group or constellation of some sort named "Seratorn", of which Eta Seratorn would logically be indicated to be the seventh most prominent star or system.
- Eta Seratorn primary