Iota Horologii was a star system in the Beta Quadrant. (ENT: "Cold Front")
Components[]
Stellar system[]
This was a single star system. The primary Iota Horologii was a G-type dwarf.
Stellar cartography[]
The Iota Horologii system was visible from Earth in the constellation Horologium. It was approximately 57 light years from Sol.
In the 2150s, this system's position was labeled on an United Earth star chart which was displayed in several crew and guest quarters aboard the Enterprise. (Star Trek: Enterprise, set decoration)
Appendices[]
Background information[]
This star system was only mentioned in writing.
Information on this system was derived from episodes, the reference works Star Trek: Star Charts and Stellar Cartography: The Starfleet Reference Library, and real-world sources. The reference works were used extensively in the creation of star charts seen in Star Trek: Discovery, Star Trek: Picard, Star Trek: Strange New Worlds, Star Trek: Prodigy, and Star Trek: Lower Decks. The real-world information added to the article was current as of 2025.
As of 2025, this system had one confirmed exoplanet named Iota Horologii b, which was identified as a gas giant.
The star chart seen in the series Star Trek: Enterprise made its first appearance in Crewman Daniels quarters in "Cold Front". It was also seen in several other episodes of the series, from 2151 to 2154. (For more information, see Federation star charts#United Earth Alpha/Beta star chart}