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Sigma Ceti was a star system in the Beta Quadrant.

Components

Stellar system

This was a trinary system. It was organized into a single star system and a binary system.

Found in the binary system, there was the primary Sigma Ceti Aa. It was a F-type subgiant. Its' companion Sigma Ceti Ab was a smaller, dimmer star.

Orbiting this system, there was the K-type dwarf Sigma Ceti B.

History

When the Venari Ral laid Omega-47 mines around the core of Federation space in 3196, this system was within the enclosed region. (SA: "Rubincon")

Stellar cartography

The Sigma Ceti system was visible from Earth in the constellation Cetus. It was approximately 88 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)

In 3196, during the Omega-47 crisis, the location of Sigma Ceti was depicted on star charts and readouts used across several locations on the USS Athena to locate, monitor, and respond to the Omega-47 mines laid by the Venari Ral. (SA: "Rubincon")(SA: "300th Night")

This star system was only mentioned in writing.
Information on this system was derived from 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.
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)

External links